Calculators
Get real answers to real questions.
Investment
Rule of 72 (By Years)
Estimates what interest rate users would need to double an investment by the number of years they enter, using a natural logarithm called the Rule of 72.
Investment
Rule of 72 (By Interest Rate)
Estimates how long it would take to double an investment by the interest rate users enter, using a natural logarithm called the Rule of 72.
Investment
Money Market Account Calculator (By Interest Rate)
Shows how much many an individual will save via compound interest and an additional monthly payment in an MMA.
Investment
Simple vs. Compound Interest
Allows users to explore the differences between simple and compound interest, and how they affect the principal of a balance.
Investment
Asset Depreciation Calculator
Calculates the worth of assets using the straight line depreciation formula, adjusting for initial purchase price, salvage value, and life of asset.