🧮 Free Investing & Trading Calculators
16 free, fast calculators for investors and traders: compound interest, DCA, position size, risk/reward, crypto profit, FIRE, loans, inflation, dividends, forex pips, Kelly and more. No sign-up, works on your phone.
Compound Interest Calculator
See how money grows when your returns earn returns – with monthly top-ups.
DCA (Dollar-Cost Averaging) Calculator
Simulate investing a fixed amount every week or month and see your average cost.
Position Size Calculator
Find how many shares or coins to buy so one trade can only lose the amount you choose.
Risk/Reward Ratio Calculator
Compare what a trade could gain with what it could lose, and the win rate needed to break even.
Crypto Profit Calculator
Work out profit or loss on any coin, including trading fees.
FIRE Calculator
Estimate your financial independence number and how many years it could take to reach it.
Loan & Mortgage Payment Calculator
Monthly payment, total interest and a payoff chart for any loan or mortgage.
Inflation Calculator
See what today's money could be worth in the future – or what you'd need to keep up.
Dividend & DRIP Calculator
Project dividend income and the effect of reinvesting dividends over time.
Average Down & Break-Even Calculator
Your new average price after buying more, and the move needed to break even.
Forex Pip Value Calculator
Pip value and profit for any forex position size.
Kelly Criterion Calculator
The classic bet-sizing formula – and why most traders use only a fraction of it.
Rule of 72 Calculator
How long it takes money to double at a given return.
Savings Goal Calculator
How much to save each month to reach any goal by a date.
Currency Converter
Convert 160+ currencies with daily exchange rates.
Percent Change & Recovery Calculator
Percent change between two prices – and the gain needed to recover a loss.