Finance

Loans, compound interest, salary conversion, margins, budgets and inflation. Useful for a quick sanity check on a number someone quoted you — informational, not financial advice.

🏦Loan CalculatorCalculate the monthly payment, total interest and total cost of a loan or mortgage — in your browser.💹Compound Interest CalculatorSee how savings grow with compound interest and regular contributions, with a breakdown — in your browser.🍽️Tip CalculatorWork out the tip and total, and split the bill between any number of people — in your browser.🔖Discount CalculatorFind the final price and how much you save from a percentage discount, including stacked discounts — in your browser.🧾Sales Tax CalculatorAdd or remove sales tax or VAT at any rate, showing net, tax and gross — in your browser.💵Salary ConverterConvert pay between hourly, daily, weekly, monthly and annual based on your work schedule — in your browser.🐷Savings Goal CalculatorSee how long to reach a savings goal — or how much to save monthly — given a target and interest rate, in your browser.📈ROI CalculatorCalculate return on investment, net profit and annualized return from initial and final values — in your browser.📊Margin & Markup CalculatorTurn cost and price into profit, margin % and markup % — and work backwards from a target margin to the price you need. See clearly why margin ≠ markup.💰50/30/20 Budget CalculatorSplit your monthly after-tax income into 50% needs, 30% wants and 20% savings — and adjust the percentages to fit your own plan, with live amounts.📈Inflation CalculatorSee what a dollar amount from one year is worth in another using bundled US CPI-U annual averages (1913–2024), with the total percentage change and annualized rate.