Free Online Calculators
Finance, health, date, and math calculators.
150+ Free Online Tools
PDF, image, text, developer, SEO & more — all run in your browser
Percentage Calculator
Calculate percentages three different ways.
Age Calculator
Calculate exact age in years, months, and days.
Discount Calculator
Calculate final prices after discounts.
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VAT Calculator
Add or remove VAT from any amount.
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BMI Calculator
Calculate body mass index.
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Loan / EMI Calculator
Calculate loan EMI and total interest.
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Date Difference Calculator
Find the gap between two dates.
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Profit Margin Calculator
Calculate profit margins from cost and revenue.
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Binary to Decimal
Convert binary numbers to decimal.
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Decimal to Binary
Convert decimal numbers to binary.
About calculators
Fast, accurate calculators for everyday math, finance, health, and time. Each calculator shows its formula so you can verify and learn.
Frequently asked questions
The math is accurate, but calculators like loan or VAT should be used as a guide — consult a professional for official figures.