Free Number & Math Tools Online

Number and math tools help you calculate, convert, and compare values without opening a spreadsheet. They are useful for everyday planning, finance, and quick conversions.

From currency conversions to EMI estimates, these utilities are built to keep common calculations fast and privacy-friendly. Use them to estimate totals, compare values, and convert between units without extra software.

Unit Converter

Convert lengths between meters, kilometers, centimeters, feet, inches and miles. Local arithmetic with four-decimal output; other unit categories are not available.

Number & math

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Currency Converter

Convert major currencies with live rates and an offline fallback.

Number & math

Percentage Calculator

Solve percentage, increase, decrease and tip calculations instantly.

Number & math

BMI Calculator

Calculate BMI from kilograms and centimeters with a broad adult category. Metric units only; no healthy-weight range or medical diagnosis is provided.

Number & math

Age Calculator

Calculate exact age, next birthday and fun life statistics.

Number & math

Number Base Converter

Convert between binary, octal, decimal and hexadecimal at once.

Number & math

Password Generator

Generate five random passwords of 16–20 characters using browser Web Crypto and unbiased character selection. Fixed alphabet; no adjustable generation options.

Number & math

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