Financial Tools
Free calculators for percentages, crypto P/L & DCA, inflation, interest, mortgage, gold & silver value, savings goals, salary conversion, tips, discount, breakeven, ROI, forex spread, and Rule of 72 — instant results.
Work out percentage change or percent-of, estimate crypto profits or DCA returns, compare purchasing power (inflation), project compound or simple interest, plan savings or mortgage payments, value gold/silver by weight, convert salary across currencies, split tips, apply discounts, find breakeven, or see how long to double your money. For informational purposes only — not financial advice.
Learn about marketsPercentage Change
Compute the percent increase or decrease between two values.
Percent Of Calculator
What is X% of Y? Or X is what percent of Y?
Crypto Profit Calculator
Estimate profit or loss on crypto buys and sells, with optional fees.
US Inflation Calculator
Compare purchasing power across years using US CPI data.
Compound Interest Calculator
See how your money grows with principal, rate, and time.
Simple Interest Calculator
Calculate interest on the principal only — no compounding.
Tip Calculator
Compute tip amount and split the bill among friends.
Discount & Markup Calculator
Sale price after % off, or selling price after % markup.
Breakeven Calculator
Find the units needed to cover fixed and variable costs.
Mortgage Calculator
Monthly payment, total interest, and amortization schedule.
ROI Calculator
Return on investment and annualized return.
Forex Spread Cost Calculator
How much you lose when converting at a given spread.
Rule of 72 Calculator
How long to double your money? Or what rate do you need?
DCA Calculator
Simulate dollar-cost averaging with monthly crypto investments using historical prices.
Gold & Silver Value Calculator
Estimate the value of gold or silver by weight and purity. Uses live spot prices.
Savings Goal Calculator
How long to reach your savings target with monthly contributions and optional interest.
Salary Converter
Convert annual salary between currencies using live exchange rates.