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MeasureMate

Finance

Loan, savings and tax calculators built on the standard amortization and compound-interest formulas, with the formula shown on every page.

Rates that change over time (US tax brackets, VAT rates, exchange rates) are labeled with the date they were checked or fetched. The results are estimates, not financial advice.

15 tools · updated

Margin Calculator Convert between cost, selling price, gross margin and markup, or find the price that delivers a target margin or markup. Mortgage Calculator Calculate the fixed monthly principal-and-interest payment on a home loan, the total repaid and a month-by-month amortization schedule. VAT Calculator Add VAT to a net price or remove it from a gross price, using your own rate or the standard rate of an EU or other VAT/GST country. Compound Interest Calculator Project the growth of a deposit with compound interest and optional monthly contributions, separating what you put in from interest earned. Loan Payment Calculator Calculate the monthly payment on a fixed-rate installment loan, the total repaid, the interest cost and the amortization table. Currency Converter Convert between about 30 major currencies at the latest European Central Bank reference rates, or at a rate you enter yourself. Savings Goal Calculator Work out the monthly deposit needed to reach a savings target in a set number of months, including interest on the balance. Budget Planner Split monthly take-home pay with the 50/30/20 rule and compare your actual needs, wants and savings with the targets. Federal Income Tax Calculator Estimate 2026 US federal income tax on a salary for single or joint filers taking the standard deduction, with marginal and effective rates. Cryptocurrency Converter Convert between cryptocurrencies, or between a coin and fiat money, using prices you enter yourself. Debt Consolidation Calculator Compare paying off several debts as you do now with a single fixed-rate consolidation loan, by payoff time and total interest. Refinance Calculator Compare your current mortgage payment with a refinanced loan and find the break-even month for closing costs and the lifetime savings. Investment Return Calculator Calculate the total return and the annualized return (CAGR) of a single investment from its start value, end value and holding period. Rent vs Buy Calculator Compare the total cost of renting and buying a home over the years you expect to stay, including equity, closing costs and the return your down payment could earn. Break-Even Calculator Calculate the units and revenue needed to cover fixed costs at a given price and variable cost, or to reach a target profit.

Which finance calculator to start with

Borrowing

For a car or personal loan, the loan payment calculator gives the monthly payment and total interest. The mortgage calculator adds a month-by-month amortization schedule showing how each payment splits between interest and principal. Already have a mortgage? The refinance calculator divides closing costs by the monthly saving to find the break-even month. The debt consolidation calculator compares several debts with one new loan, and rent vs buy sets the total cost of owning against renting and investing the difference.

Saving and investing

Three tools look at the same growth formula from different sides. The compound interest calculator projects a balance forward from a deposit plan, the savings goal calculator starts from a target and works back to the monthly deposit, and the investment return calculator takes a start and end value and reports the annual growth rate (CAGR). The budget planner helps decide how much can go to saving in the first place.

Prices, margins and tax

Margin and markup are not the same percentage: a 25% markup on cost is a 20% margin on the selling price. The margin calculator shows both, and the break-even calculator finds how many units cover fixed costs. To take VAT out of a price, divide by one plus the rate rather than subtracting the percentage; the VAT calculator does it both ways. US federal income tax for the 2026 tax year is estimated by the federal income tax calculator.

Exchange rates and crypto prices

The currency converter uses the European Central Bank’s reference rates and shows their date. Banks and card networks add their own margin to those mid-market rates, so expect to receive slightly less. Crypto prices move too fast to store in a page, so the crypto converter uses a price you look up and enter.