Interest & Growth
Simple and compound interest, annuities, CAGR and inflation.
- Annuity Calculator Future value and present value of a series of equal payments.
- CAGR Calculator Compound annual growth rate between two values, with the average annual return next to it.
- Compound Interest Calculator How savings grow with compound interest and regular deposits, year by year.
- Continuous Compounding Calculator Growth under continuous compounding, compared with monthly and yearly compounding.
- Dollar-Cost Averaging Calculator Average purchase price when investing a fixed amount at different prices, against the simple average price.
- Effective Annual Rate Calculator (APR to APY) Converts a nominal rate or APR into the effective annual rate or APY, by compounding frequency.
- Future Value Calculator What a sum today will be worth in the future at a given rate of return.
- Inflation Calculator What prices and purchasing power become over time at an inflation rate you choose.
- Lump Sum vs Periodic Investing Calculator Investing all at once against spreading it over several months, at a return you assume.
- Perpetuity Calculator The present value of a payment that continues forever, with optional growth.
- Present Value Calculator What a future sum is worth today at a given discount rate.
- Real Return Calculator Investment return after inflation, using the exact Fisher formula.
- Rule of 72 Calculator How long money takes to double at a given rate, by the rule of 72 and exactly — or the rate needed to double in a given time.
- Simple Interest Calculator Simple interest and the total owed or earned, from the principal, rate and time.