TOOLS2030 / CATEGORIES
Online Calculators
Fast calculators for finance, percentages, dates, health and everyday maths.
From loan repayments to sale prices, these calculators give quick answers for money, percentages, dates and health, without a spreadsheet. Start with Loan Calculator for monthly payments, Percentage Calculator for everyday percentage problems, or BMI Calculator for a quick health check.
Results are estimates for planning and comparison, so check the notes on each calculator before making a decision. The Calculator Guides section below explains the maths behind the most-used tools, including how EMI is calculated and how simple and compound interest differ.
Percentage CalculatorCalculate percentages and percentage changes.Loan CalculatorEstimate monthly payments and interest.EMI CalculatorCalculate monthly EMI and total repayment.Simple InterestCalculate simple interest on principal.Compound InterestEstimate compounded growth over time.Discount CalculatorFind sale price and savings.GST/VAT CalculatorAdd or remove tax from an amount.Tip CalculatorCalculate tip and split bills.Age CalculatorFind exact age in years, months and days.BMI CalculatorCalculate body mass index.Scientific CalculatorAdvanced maths functions in the browser.Fraction CalculatorAdd, subtract, multiply and divide fractions.Price / Quantity CalculatorCalculate unit price, quantity or total from known values.Proportion (Ratio) CalculatorSolve ratios and proportional values.
Calculator Guides
Simple vs compound interest · How EMI is calculated · Percentage, discount and tax guide