Free tools
Free Personal Finance Calculators
$10,000 invested at 7% for 30 years grows to about $76,000 — but add $100 a month and the same starting balance becomes $194,000. The math isn't intuitive until you see it run on your own numbers. The calculators below pair with our plain-English explainers, run in your browser, and link to the full article that explains the formula each one uses.
3 calculators · more on the way
Compound Interest Calculator
See how a starting balance grows over time with compound interest, optional monthly contributions, and adjustable compounding frequency.
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Inflation Calculator
Calculate how much a future expense will cost in today's purchasing power, or how much purchasing power your savings lose to inflation over time.
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Interest Calculator
Calculate the interest earned on a savings account or owed on a loan over a chosen period, using either simple or compound interest.
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