Finance

Tax, margins, interest and break-even - 26 working tools

GST / VAT CalculatorAdd or remove sales tax from an amount at any rate.
Profit Margin & MarkupMargin, markup and profit from cost and selling price.
Break-even CalculatorHow many units you must sell to cover fixed costs.
Simple & Compound InterestInterest earned over time with chosen compounding.
Savings Goal CalculatorHow long to reach a target by saving every month.
Tip & Bill SplitSplit a bill with tip between any number of people.
Salary CalculatorConvert a salary between hourly, daily, weekly, monthly and yearly pay using your own working hours.
Salary Increase CalculatorWork out a raise: new salary, increase amount and percentage, from a percent, a new figure or an amount.
Income Tax EstimatorEstimate tax from progressive slabs that YOU edit. The slabs shown are placeholders, not any country's law.
Reverse Sales Tax CalculatorFind the pre-tax price and the tax inside a tax-inclusive total (single or combined rates).
Mortgage CalculatorMonthly payment, total interest and a full amortization schedule (with optional extra payments). Download the schedule as CSV.
Loan Comparison CalculatorCompare two or more loans side by side: monthly payment, total interest and total cost including fees.
Debt Repayment CalculatorCompare the avalanche (highest rate first) and snowball (smallest balance first) payoff plans for several debts.
Retirement Savings CalculatorProject your savings at retirement from your contributions and an expected return, in future and in today's money.
Investment Return CalculatorGrow a lump sum with regular contributions at a chosen rate and compounding. See yearly balances and download CSV.
Dividend Yield CalculatorDividend yield, yield on cost and yearly dividend income from price, payout and share count.
Stock Average Price CalculatorAverage buy price across several purchases (with fees), profit at a current price, and shares needed to reach a target average.
CAGR CalculatorCompound annual growth rate from start and end values, or the end value / years needed for a given rate.
Inflation CalculatorPurchasing power over time using inflation rates or price-index values that YOU enter. No inflation data is built in.
Electricity Consumption CalculatorEnergy use in kWh for each appliance from watts and hours, with cost at your tariff and each appliance's share.
Electricity Bill CalculatorEstimate a bill from appliance usage or meter units, using your own tariff blocks, fixed charge and tax rate.
Fuel Cost CalculatorTrip fuel and cost from distance, fuel economy (L/100 km, km/L or mpg) and fuel price, with optional cost split.
Solar System Sizing CalculatorRough solar array, battery bank and inverter size from your daily energy use and your local peak sun hours.
Battery Backup Time CalculatorHow long a battery bank runs a load through an inverter - or how big a battery you need for a target runtime.
Live Currency ConverterConvert currencies with live reference rates from api.frankfurter.dev (loaded only after you agree), or enter your own rate manually.
Crypto ConverterConvert between popular cryptocurrencies and fiat using prices from api.coingecko.com (loaded only after you agree) or a price you type.