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HP 12C Financial Calculator

4.5 4.5 out of 5 stars 2,615 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Financial & Business Office Calculators by HP

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Brand HP
Color Black
Calculator Type Business/Financial Calculator
Power Source Battery Powered
Screen Size 2 Inches

About this item

  • Easy-to-use layout helps prevent typing errors for efficient data entry
  • More than 120 built-in functions help you easily make variety of calculations
  • Power-off memory protection keeps your data safe
  • Perfect for real estate, finance, accounting, business and more
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HP 12C Financial Calculator
HP 12C Financial Calculator
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Price$36.98-32% $27.15
List:$39.99
-9% $45.49
List:$49.99
-13% $25.99
List:$29.99
$39.89
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Easy to learn
4.2
4.1
4.3
4.1
4.2
Easy to use
4.1
4.0
4.2
4.3
4.1
Easy to read
4.3
4.5
4.5
4.3
Value for money
4.0
4.4
4.0
Sold By
Club Distributors
Tec Purchase
HD Sales US
Your Austin Store
G.P.S.
model name
12C Financial Calculator
HP 10Bll+
power source
Battery Powered
Battery Powered
Battery Powered
Battery Powered
Battery Powered
battery quantity
2 lithium metal, 1 cr123a, 3 lr44, 2 c, 1 cr2, 1 a, 2 aa, 2 aaa, 1 lithium ion, 1 product specific, 1 unknown, 3 9v
2 cr2
1 lithium metal, 1 cr2032
2 cr2, 2 c
2 c
display type
LCD
LCD
LCD
LCD
material
Plastic, Aluminum
Plastic
Plastic

Product information

Technical Details

Additional Information

Warranty & Support

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HP 12C Financial Calculator


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Product Description

Product Description

The HP 12C Financial Calculator features built-in financial functions and statistics, uses Reverse Polish Notation (RPN), more than 120 built-in functions, including register-based cash-flow analysis, 10-character, 1-line LCD display, Device measures 5.0 x 0.6 x 3.1 inches (WxHxD).It has 10-character, 1-line LCD display.

Amazon.com

If you bought yourself a financial calculator during the 1980s, chances are it was this bad boy. Nothing has changed since its introduction--it still uses Reverse Polish Notation (RPN), is easy and versatile in programming, and has a thin, sturdy casing. Certainly, there's been newer, fancier calculators introduced since, but there's something to be said for the quality of classics.

The HP 12C's functions include all the basics--such as calculating APR, NPV, and IRR--and statistics are a snap. For students new to financial calculators, this is an excellent place to start. For the most part, the manual reads like a minitextbook, walking you through sample problems and situations followed by graphs and tables demonstrating the technique--and you can even check your results. The section on creating programs does seem to be written for the technically ignorant, addressing in detail how you could possibly benefit from using programs, but it'll still help you get the job done.

In general, it's a bit slower than newer models, just like last year's computer isn't as speedy as today's new release. On the plus side, it's just 3 by 5 inches and slips easily into a pocket. The bottom is printed with a few little cheat notes for common functions, which is nice for quick reference. The HP 12C's one-year warranty and available tech-support line offer reassurance this little workhorse will continue to be an industry standard for years to come. --Jill Lightner

Pros:

  • Pocket size
  • Thorough and simple instruction manual
  • Competitive price

    Cons:

    • Calculates more slowly than modern machines What's in the Box
      Calculator, user's manual, installed batteries and carrying case

What's in the box

  • Calculator
  • Product guides and documents

    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    2,615 global ratings

    Customers say

    Customers like the value of the calculator. For example, they say it's the best calculator money could buy, an investment, and a great purchase. Opinions are mixed on the quality, performance, and ease of use.

    AI-generated from the text of customer reviews

    132 customers mention105 positive27 negative

    Customers like the value of the calculator. They say it's the best calculator money could ever buy, a great investment, and worth investing the time to learn how to use. Customers also say it is the ultimate financial calculator and the standard in the industry.

    "...12Cs will last as long as the legacy 12Cs, but this is such an inexpensive fix that you can buy these used all day long at a bargain and run them..." Read more

    "...This HP12c arrived promptly and seems to be a brand new, genuine product...." Read more

    "...Otherwise, 12C's are great for business...." Read more

    "Excellent quality at a very good price.Just a small scratch is the only sign that it is not brand new.Definitely worth it!" Read more

    398 customers mention219 positive179 negative

    Customers are mixed about the quality of the calculator. Some mention that it is a solid product, dependable, and one of the best financial calculators. However, others say that it very unreliable and prone to wrong results. They also say that the quality is clearly inferior to that of HP's calculators and that it's not robust.

    "...like the "save" and the "recall" buttons that provide quick access to previous entries. It can amortize compute future values and much more...." Read more

    "...It's not the same calculator. It has a flimsier case, the buttons don't feel as "sure" and it's not faster (in spite of the claims)...." Read more

    "...These are so durable that I've only had to replace mine twice in 30 years. This HP12c arrived promptly and seems to be a brand new, genuine product...." Read more

    "...30th Anniv edition had great keypad, I loved them, but the calculators were not robust like the old legacy 12Cs.. I've gone through 2ea 30th Anniv..." Read more

    154 customers mention92 positive62 negative

    Customers are mixed about the performance of the calculator. Some mention it works really well, is reliable, and effective. However, others say that it stopped working in February of this year, and the + key doesn't work at all. Customers also mention that it doesn''t operate like the average calculator and that the worn 3 key sometimes doesn'’t work right.

    "I needed this calculator for an appraiser exam. It worked great no complaints." Read more

    "...or give two to three digits for one suppression, making it very unreliable and prone to wrong results" Read more

    "Everything was perfect!!!" Read more

    "...The old hps do not do this.The calculator is very useful otherwise...." Read more

    152 customers mention78 positive74 negative

    Customers are mixed about the ease of use of the calculator. Some mention that it's more natural and far easier to use than an algebraic calculator, user-friendly calculators there is, and all functions are accessible first hand. However, others say that it is a little more difficult to learn to use, the quick start guide is fairly useless, and the instruction manuals are in Spanish, making it impossible to use.

    "...but once you learn it you'll find that it's more natural and far easier to use than an algebraic calculator...." Read more

    "...when you press the keys the circuit board ‘gives’ and the keys don’t have a firm backing, so the keys don’t respond...." Read more

    "...It has shortcut features like the "save" and the "recall" buttons that provide quick access to previous entries...." Read more

    "...It has all the necessary functions.Cons: It is pricey and complicated to use if you only need it for one or two classes, or occasional..." Read more

    Make a 30th Anniv Edition/Legacy 12C Sensitive Keypad, a DYI Solution for No More Sticky Keys!
    4 Stars
    Make a 30th Anniv Edition/Legacy 12C Sensitive Keypad, a DYI Solution for No More Sticky Keys!
    No keypads are as good as the legacy HP12Cs. But they're too slow. The 30th Anniv edition had great keypad, I loved them, but the calculators were not robust like the old legacy 12Cs.. I've gone through 2ea 30th Anniv editions and won't spend the current $300 asking price for them now. But I found an even better solution!Solution: buy a new or good used inexpensive12C that uses 2ea CR2032 batteries. Remove the footpads with a blunt knife. Remove the batteries. Remove all the screws with a small jewelers Phillips screwdriver and with the keypad side down carefully unsnap the covers and gently fold the back to the left; careful don't break the wire connections (although I have done and had to resolder them)!Use two cut two pieces of manilla folder (or better, one piece where the hinge doubles the thickness) to cover the circuit board, placing them over the circuit board just to the right of the wire connections. Size: just under 4" by just over 2", but measure it yourself. What you are doing is putting a backstop to the keyboard, making it much more sensitive to finger pressure. Simply lay the 2 thicknesses over the circuit board and fold the back cover gently on to the front cover and snap back in place. Replace the 6 screws. insert batteries and test it. Put a thin coat of rubber cement on the footpads and replace them.I've edited this review and this is the step by step with pix:1. Removing the foot pads2. There are 6 screws, 1 Smaller and 5 Larger3. Snapping the case apart4. Open is to the left as if it had a hinge, careful not to break the wire soldering5. Cut your manilla folder; I cut it at the hinge so it folds over for two layers6. Place the cut out on the board. NOTE: a bit of scotch tape helps; be careful to tape it over plastic sections of the circuit board only, not any visible metal circuit board contacts, bcz the glue on the tape may be conductive. Also notice that on this 12C two layers of folder were not enough. The 4, 5, & 6 keys were still not as responsive as my 30th Anniv Edition so I had to add some more thickness to a section of the keys. You’ll only know this if you reassemble and the case and test it. (Of course, don’t cement the footpads until you you’ve screwed the cover back on.) ALSO! Be careful to make sure the LED display is correctly seated or the case won’t snap together on top; you’ll know this bcz the case won’t snap on top near the display when you reassemble.8. Screw the case together, a bit of rubber cement on the back of the footpads, wait about 10min for them to dry, and you’re good.9. You’ve just made a $300 30th Anniv edition 12C!The problem with the latest models is that the factory hasn’t anchored the keypad to the circuit board sufficiently and the keyboard has some ‘slop.’ So, when you press the keys the circuit board ‘gives’ and the keys don’t have a firm backing, so the keys don’t respond. (The older models had several welds between the keypad and the circuit board; the new ones don’t.)I don’t think the new 12Cs will last as long as the legacy 12Cs, but this is such an inexpensive fix that you can buy these used all day long at a bargain and run them into the ground. This one I picked this one up for $18 used, but new condition. Someone clearly returned it bcz of the key problems. You can make your own $300 12C 30th Anniv cheaply since so many of these are returned and are resold at a bargainCongrats! You just saved ~$250 or more!9.22.20 Update: I just did another one that required another layer over the 4, 5, and 6 keys. So I had the two initial layers, plus a third layer over the numbers area. But even that wasn't enough for the 4, 5, and 6 keys. I had to tape an even smaller patch over the 4, 5, 6 area: 4 layers of manilla folder thickness. It works a charm. It feels for all the world like a 30th Anniv edition. So, before you reinstall the footpads, give it good test and if needed, go back in and add another/more layer(s).
    Thank you for your feedback
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    Top reviews from the United States

    Reviewed in the United States on February 6, 2024
    Reviewed in the United States on June 28, 2003
    14 people found this helpful
    Report
    Reviewed in the United States on February 21, 2024
    Reviewed in the United States on September 18, 2020
    Customer image
    4.0 out of 5 stars Make a 30th Anniv Edition/Legacy 12C Sensitive Keypad, a DYI Solution for No More Sticky Keys!
    Reviewed in the United States on September 18, 2020
    No keypads are as good as the legacy HP12Cs. But they're too slow. The 30th Anniv edition had great keypad, I loved them, but the calculators were not robust like the old legacy 12Cs.. I've gone through 2ea 30th Anniv editions and won't spend the current $300 asking price for them now. But I found an even better solution!

    Solution: buy a new or good used inexpensive12C that uses 2ea CR2032 batteries. Remove the footpads with a blunt knife. Remove the batteries. Remove all the screws with a small jewelers Phillips screwdriver and with the keypad side down carefully unsnap the covers and gently fold the back to the left; careful don't break the wire connections (although I have done and had to resolder them)!

    Use two cut two pieces of manilla folder (or better, one piece where the hinge doubles the thickness) to cover the circuit board, placing them over the circuit board just to the right of the wire connections. Size: just under 4" by just over 2", but measure it yourself. What you are doing is putting a backstop to the keyboard, making it much more sensitive to finger pressure. Simply lay the 2 thicknesses over the circuit board and fold the back cover gently on to the front cover and snap back in place. Replace the 6 screws. insert batteries and test it. Put a thin coat of rubber cement on the footpads and replace them.

    I've edited this review and this is the step by step with pix:

    1. Removing the foot pads

    2. There are 6 screws, 1 Smaller and 5 Larger

    3. Snapping the case apart

    4. Open is to the left as if it had a hinge, careful not to break the wire soldering

    5. Cut your manilla folder; I cut it at the hinge so it folds over for two layers

    6. Place the cut out on the board. NOTE: a bit of scotch tape helps; be careful to tape it over plastic sections of the circuit board only, not any visible metal circuit board contacts, bcz the glue on the tape may be conductive. Also notice that on this 12C two layers of folder were not enough. The 4, 5, & 6 keys were still not as responsive as my 30th Anniv Edition so I had to add some more thickness to a section of the keys. You’ll only know this if you reassemble and the case and test it. (Of course, don’t cement the footpads until you you’ve screwed the cover back on.) ALSO! Be careful to make sure the LED display is correctly seated or the case won’t snap together on top; you’ll know this bcz the case won’t snap on top near the display when you reassemble.

    8. Screw the case together, a bit of rubber cement on the back of the footpads, wait about 10min for them to dry, and you’re good.

    9. You’ve just made a $300 30th Anniv edition 12C!

    The problem with the latest models is that the factory hasn’t anchored the keypad to the circuit board sufficiently and the keyboard has some ‘slop.’ So, when you press the keys the circuit board ‘gives’ and the keys don’t have a firm backing, so the keys don’t respond. (The older models had several welds between the keypad and the circuit board; the new ones don’t.)

    I don’t think the new 12Cs will last as long as the legacy 12Cs, but this is such an inexpensive fix that you can buy these used all day long at a bargain and run them into the ground. This one I picked this one up for $18 used, but new condition. Someone clearly returned it bcz of the key problems. You can make your own $300 12C 30th Anniv cheaply since so many of these are returned and are resold at a bargain

    Congrats! You just saved ~$250 or more!

    9.22.20 Update: I just did another one that required another layer over the 4, 5, and 6 keys. So I had the two initial layers, plus a third layer over the numbers area. But even that wasn't enough for the 4, 5, and 6 keys. I had to tape an even smaller patch over the 4, 5, 6 area: 4 layers of manilla folder thickness. It works a charm. It feels for all the world like a 30th Anniv edition. So, before you reinstall the footpads, give it good test and if needed, go back in and add another/more layer(s).
    Images in this review
    Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image
    Customer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer image
    27 people found this helpful
    Report
    Reviewed in the United States on February 24, 2024
    Reviewed in the United States on October 8, 2023
    3 people found this helpful
    Report

    Top reviews from other countries

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    Enueli
    5.0 out of 5 stars Original
    Reviewed in Brazil on March 16, 2024
    Customer image
    Enueli
    5.0 out of 5 stars Original
    Reviewed in Brazil on March 16, 2024
    Parece muito ser original, qualidade ótima adorei ❤️
    Images in this review
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    Customer imageCustomer image
    Pablo Fernandez
    5.0 out of 5 stars Indudablemente es la mejor calculadora financiera que he utilizado. Una maravilla!!
    Reviewed in Mexico on March 14, 2023
    One person found this helpful
    Report
    UH
    5.0 out of 5 stars Guter Taschenrechner
    Reviewed in Germany on February 9, 2024
    Daniel Miguelez
    5.0 out of 5 stars Repito, mi primera HP12C la compré en 1982.
    Reviewed in Spain on November 18, 2023
    Jan Petterson
    5.0 out of 5 stars Fantastisk produkt
    Reviewed in Sweden on November 2, 2023