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Finance & Business
Compare costs, loans, returns, taxes and operating metrics.
Loans & Interest
- Compound Interest CalculatorSee how a starting amount and regular deposits grow with compound interest — set your rate, term and how often it compounds to get the future balance and the interest earned.
- Loan Amortization CalculatorWork out the monthly payment on a fixed-rate loan and see how every payment splits between principal and interest — with the total interest and a full repayment schedule.
- Mortgage CalculatorEnter a home price, down payment, interest rate and term — then add property tax and insurance — to see your full monthly payment and the interest you’ll pay over the life of the loan.
- APR & APY ConverterTurn a nominal annual rate (APR) into its effective yield (APY) — or work back the other way — for any compounding frequency, and see the rate per period plus how much compounding adds.
Personal Savings & Retirement
Property & Housing Finance
Business & SaaS Metrics
- ROI & Payback CalculatorEnter what you put in and the profit it earns each period to see how long it takes to break even and your annual return on investment.
- Break-Even CalculatorEnter your fixed costs, price per unit and variable cost per unit to see how many units — and how much in sales — you need to cover your costs.
- Markup & Margin CalculatorEnter a cost and selling price — or set a target markup or margin — to find the profit and convert between both rates.
- Salary to Hourly CalculatorEnter annual or monthly salary, weekly hours and work weeks to see hourly, daily and weekly pay.
Business Documents & Efficiency
Investment Valuation & Portfolio
Marketing & Experiment Analytics
E-commerce, Pricing & Tax
- VAT, GST & Sales Tax CalculatorAdd tax to a net amount or extract the net amount and tax from a tax-inclusive total.
- Import Duty & Tax CalculatorSee what customs will add before your parcel ships — duty, import VAT or GST, and the total you actually pay on arrival.
- Amazon FBA Profit CalculatorSee your real profit per unit — every Amazon fee itemized before you commit to a product.
Currency, Exchange & Inflation
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