Money, worked out.
Mortgages, loans, interest, overtime, inflation. The money decisions that actually come up in a life, with the math shown.
GuideBuying a Home: the whole purchase, worked throughLoan Calculator
Calculate loan payments, interest, and amortization schedule with our easy-to-use loan calculator.
Mortgage Calculator
Calculate monthly mortgage payments with adjustable principal, interest rate, and loan terms. Visualize payment breakdowns and amortization schedule.
Simple Interest Calculator
Calculate simple interest easily with our online tool.
Compound Interest Calculator
Free online compound interest calculator with multiple calculation modes. Perfect for investment planning, 401K calculations, and savings accounts.
Simple Overtime Calculator
Calculate basic overtime pay with customizable rates and hours.
Advanced Overtime Calculator
Advanced overtime calculator with support for multiple rules and detailed analysis.
Bitcoin Power Law Calculator
Use the power law model to analyze Bitcoin price trends and predict future valuations. Visualize historical data and projections with interactive charts.
PMT Calculator
Replicate Excel's PMT(rate, nper, pv, [fv], [type]) function online. Find your fixed loan payment, total interest, and a yearly amortization schedule, with a copy-paste spreadsheet formula.
Inflation Calculator
Adjust any amount for inflation using official US (CPI-U), UK (CPI), and Eurozone (HICP) data. See cumulative inflation, average annual rate, and lost purchasing power.
Deposit & LTV Calculator
Calculate your loan-to-value (LTV) ratio and discover which mortgage rate shelf you qualify for. Supports £, $, and €.
Savings Goal Calculator
Find out when you will hit your savings target, or how much you need to put away each month. Supports compound interest and £/$/€ display.
Home Affordability Calculator
Calculate your maximum home purchase price using the US 28/36 DTI rule or UK/EU income multiples. Supports £, $, and €.
Stamp Duty & Closing Costs Calculator
Work out UK stamp duty (SDLT for England & NI, LBTT for Scotland, LTT for Wales) by buyer type, or US closing costs and state transfer tax, with a slice-by-slice band breakdown.
Mortgage Overpayment Calculator
Calculate how much interest you save and how many years you cut from your mortgage term by overpaying each month. Includes a balance comparison chart and worked example.