Percentage Calculator
Calculate percentages, ratios and percentage changes instantly.
Calculator toolsCalculator tools
Clear estimates for everyday financial and date questions.
YOUR EVERYDAY TOOLKIT
Find the right tool
Compound Interest Calculator
Estimate compound growth with recurring contributions and a yearly breakdown.
Calculator toolsCAGR Calculator
Calculate Compound Annual Growth Rate (CAGR) from a beginning value, ending value and investment period.
Calculator toolsLoan Calculator
Estimate monthly payments, total interest and an amortization schedule.
Calculator toolsInvestment Growth Calculator
Project growth from a starting amount and monthly contributions.
Calculator toolsAge Calculator
Calculate exact age in years, months and days for any date.
Calculator toolsDate Difference Calculator
Find calendar time, total days, weeks and weekdays between dates.
Calculator toolsMortgage Calculator
Estimate a fixed-rate mortgage payment with a full amortization schedule.
Calculator toolsUnderstand the numbers behind a decision
Calculate percentages, loan payments, compound growth, annualized return and investment projections. Date tools calculate exact calendar differences, ages and weekday-only business-day estimates.
Common uses
Compare a price change, understand a repayment plan, model recurring savings or count the time between dates. Inputs use a neutral currency unit, so you can enter dollars, pounds, euros or another consistent unit.
Calculator tools: common questions
Are calculator results financial advice?+
No. They are estimates for comparison and planning.
Which currency is used?+
No currency is imposed. Results use the same unit as the amounts you enter.
Are calculations sent anywhere?+
No. They run locally in your browser.