Unit Converter Tools
Convert between any pair of units instantly - length, weight, temperature, currency, data, energy, time, pressure, and more. Engineering precision, classroom simple.
Unit Converter Tools tools
Bytes Converter
Convert bytes to KB, MB, GB, TB and vice versa.
Length Converter
Convert between different length units.
Temperature Converter
Convert Celsius, Fahrenheit, Kelvin.
Weight Converter
Convert between weight units.
Speed Converter
Convert between speed units.
Number to Words Converter
Convert numbers to English words.
Area Converter
Convert between m², ft², acres, hectares, km² and more.
Volume Converter
Convert between L, mL, gallons, cups, m³, ft³ and more.
Time Converter
Convert between nanoseconds, seconds, minutes, hours, days, weeks and years.
Pressure Converter
Convert between Pa, bar, atm, psi, mmHg and more.
Energy Converter
Convert between joules, calories, kWh, BTU and electronvolts.
Power Converter
Convert between watts, kilowatts, horsepower and BTU/hr.
Frequency Converter
Convert between Hz, kHz, MHz, GHz, RPM and BPM.
Angle Converter
Convert between degrees, radians, gradians and turns.
Data Transfer Rate Converter
Convert between bps, Kbps, Mbps, Gbps, KB/s, MB/s and more.
Unix Timestamp Converter
Convert between Unix epoch and human-readable dates with timezones.
Number Base Converter
Convert between binary, octal, decimal, hex, base32 and base64.
Date Difference Calculator
Calculate days, weeks, months and business days between two dates.
Color Format Converter
Convert between HEX, RGB, RGBA, HSL, HSV and CMYK.
Cooking Measurement Converter
Convert cups, tbsp, oz, mL and grams with ingredient density.
Oven Temperature Converter
Convert oven temperatures between Celsius, Fahrenheit and Gas Mark.
Clothing Size Converter
Convert clothing sizes between US, UK, EU, AU and JP.
Shoe Size Converter
Convert shoe sizes between US, UK, EU, JP and CM.
Roman Numeral Converter
Convert Arabic numbers to Roman numerals and back.
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About Unit Converter Tools
Free Unit Converter Tools - a complete collection of utilities used by engineers, scientists, students and travellers every day. Convert between any pair of units instantly.
Length, weight, temperature, currency, data, energy and more - all in one place. Most tools work entirely in your browser, so your data stays on your device. Pick a tool below to get started.
Questions about
Unit Converter Tools
Quick answers to what users ask before trying these tools.
How accurate are these conversions?
Can I convert in both directions?
Do you support uncommon units?
Why is temperature different from other conversions?
Can I convert multiple values at once?
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