Tools · CalculatorCompound interest calculator: how much could your savings grow?Enter a starting amount, a monthly deposit, a rate and a time span to see how much of the result is your money and how much is interest earning interest.5 min readSection
Tools
Every calculator shows its formula and a worked example computed by the same code that powers the tool, so you can check our numbers by hand.
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Tools · CalculatorCompound interest calculator: how much could your savings grow?Enter a starting amount, a monthly deposit, a rate and a time span to see how much of the result is your money and how much is interest earning interest.5 min read
Tools · CalculatorProfit and loss calculator: what did a trade really make after fees?Enter what you paid, what you sold for, how much you traded and the fee on each side. The calculator shows the profit or loss after fees and the sale price you need just to break even.5 min read
Tools · CalculatorLeverage calculator: how far can the price move before your margin is gone?Enter your margin, the leverage, an entry and exit price and the direction. The calculator shows the size of the bet you are really making and how small a move can erase your money.5 min readAll Tools pages
Tools · CalculatorAverage cost calculator: what did you really pay per unit?Enter up to six purchases and the fee you pay on each. The calculator shows how many units you own and the average price you paid for them, which is rarely the average of the prices.
Tools · CalculatorAPR to APY converter: how much does compounding really add?Two accounts can quote the same rate and still pay different amounts. Enter a rate and a compounding frequency to see the real yearly yield.
Tools · CalculatorLoan payment calculator: what will a loan cost each month and in total?Enter the amount, the annual rate and the term to see the fixed monthly payment and how much of your money goes to interest rather than the loan itself.
Tools · CalculatorInflation calculator: what will today's money be worth in the future?Pick an amount, an inflation rate you think is plausible and a number of years to see how the same basket could cost more and the same dollars buy less.