The CALC 1 formula calculators are dedicated to a single formula with store, recall and solve keys for each parameter as well as the result. You can also easily create a graph of the formula by entering the range and selecting the independent variable.

If there is a formula calculator that you would like to be included, please use the contact form to request it. It would help a great deal if you can provide the formula and test examples. A link to a web site usually works.

- Effective Interest Rate
- Effective Interest Rate-Continuous
- Simple Interest Loan - Days
- Simple Interest Loan - Actual
- Simple Interest Loan - NASD
- Simple Interest Loan - EURO
- SLN Function Straight Line Depreciation
- SYD Function Sum of the Years Depreciation
- DDB Function Declining Balance Depreciation
- Payment for Odd First Period
- Price Formula 7
- Black-Scholes Call
- Black-Scholes Put
- Present Value of a Graduated Annuity Due
- Present Value of a Graduated Regular Annuity
- Future Value of a Graduated Annuity Due
- Future Value of a Graduated Regular Annuity
- Number of Periods
- Present Value
- Payment
- Future Value

- Percent Change
- Percent Change with Periods
- Percent of Total
- Markup as Percent of Cost
- Markup as Percent of Price
- Profit Margin
- Breakeven
- Cost of Not Taking a Cash Discount
- Economic Order Quantity
- Newsvendor Model for a Uniform Distribution
- Newsvendor Model for a Normal Distribution
- Newsvendor Model for a Lognormal Distribution

- Linear Function
- Logarithmic Function
- Exponential Function
- Power Function
- Exponent Function
- Inverse Function
- 2
^{nd}Degree Polynomial - 3
^{rd}Degree Polynomial

Statistical Distributions Overview

- Normal Distribution PDF
- Normal Distribution CDF
- Normal Distribution CDF Upper Tail
- Normal Distribution CDF for 2 Tails
- Normal Distribution CDF for 2 Values
- Student T Distribution CDF
- Student T Distribution CDF 2 Tails
- Log Normal Distribution CDF
- Binomial Distribution PMF
- Binomial Distribution CDF
- Poisson Distribution PMF
- Poisson Distribution CDF

- DAYS Function
- DAYS360 Function
- BMI kg m
- BMI lb in
- NFL QB Rating
- NCAA QB Rating
- Elo Expected Score
- Dew Point ℃
- Dew Point ℉