Convert APR to APY (and back) with daily, monthly, quarterly or continuous compounding. Compare effective yields for DeFi staking, savings accounts and lending.
Free break-even calculator: break-even point in units and sales, contribution margin, target profit, margin of safety and operating leverage with a chart.
See sale price, the amount and percent you save, tax applied after the discount, and a margin guard that flags if a promo drops below cost. Free and fast.
Free EMI calculator for home, car & personal loans: monthly installment, total interest, reducing-balance amortization plus extra-payment prepayment savings.
Calculate the cost to charge an electric car at home vs public DC fast charging. Cost per kWh and per mile, EV vs gas savings, plus annual and monthly cost.
Convert nominal rate (APR) to effective annual rate (EAR/APY) for any compounding, or convert APY back to the required nominal rate. Compare loans and savings.
Calculate trip fuel cost in km or miles with L/100km, MPG or km/L. Get cost per mile/km plus daily, weekly, monthly and yearly commute or fleet budgets.
Add or remove GST from inclusive or exclusive prices: Australia 10%, Canada 5%, India, NZ 15%, Singapore 9%. Totals reconcile to the cent for BAS and invoices.
Calculate monthly mortgage payment with full PITI breakdown, amortization, auto PMI, property tax, insurance, HOA, and refinance break-even. Free and fast.
Profit margin calculator for gross, operating, EBIT and true net margin with interest and tax inputs. Find price from target margin and markup vs margin.
Compute simple interest with I=P×R×T, or solve backward for the rate, principal, or time. Get interest and total amount instantly. Free online calculator.
Compare stablecoin APY from Aave, Compound, Sky, Ethena, Pendle and Coinbase side by side. Risk-adjusted ranking, fees, inflation and basis-point gaps.
Add or remove VAT, extract VAT from inclusive prices, and total Net, VAT and Gross across multiple lines. Preset 2026 rates for the UK, EU and 37 countries.