Free Unit Converter Tools
12 free unit conversion tools covering length, weight, temperature, volume, speed, pressure, area, and digital storage — instant results, no login required.
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Select a topic below to find the right tool for your task.
Length & Area
Convert meters, feet, inches, centimeters, and area units.
Weight & Volume
Convert kilograms, pounds, liters, gallons, and more.
Temperature
Convert Celsius, Fahrenheit, and Kelvin.
Speed & Force
Convert speed, torque, pressure, and power units.
Electrical
Convert voltage and electrical units.
Digital Storage
Convert bytes, KB, MB, GB, and TB.
Featured Tools
Most popular tools in this category — 100% free.
Length Converter
FREEConvert between meters, feet, inches, centimeters, miles, and more.
Weight Converter
FREEConvert kilograms, pounds, ounces, grams, and more.
Temperature Converter
FREEConvert between Celsius, Fahrenheit, and Kelvin.
Area Converter
FREEConvert square meters, acres, hectares, and more.
Volume Converter
FREEConvert liters, gallons, milliliters, and cubic units.
Speed Converter
FREEConvert km/h, mph, m/s, and knots.
Byte Converter
FREEConvert between bytes, KB, MB, GB, and TB.
Pressure Converter
FREEConvert Pascal, bar, psi, atm, and more pressure units.
All Free Unit Converter Tools (30)
Explore all free tools in this category below.
Area Converter
Convert between different units of area.
Ascii To Binary Converter
Fast, free, and reliable online Ascii To Binary Converter for SEO, content, and digital workflows.
Ascii To Text Converter
Fast, free, and reliable online Ascii To Text Converter for SEO, content, and digital workflows.
Binary To Ascii Converter
Fast, free, and reliable online Binary To Ascii Converter for SEO, content, and digital workflows.
Binary To Decimal Converter
Fast, free, and reliable online Binary To Decimal Converter for SEO, content, and digital workflows.
Binary To English Converter
Fast, free, and reliable online Binary To English Converter for SEO, content, and digital workflows.
Binary To Hex Converter
Fast, free, and reliable online Binary To Hex Converter for SEO, content, and digital workflows.
Binary To Text Converter
Fast, free, and reliable online Binary To Text Converter for SEO, content, and digital workflows.
Byte Converter
Fast, free, and reliable online Byte Converter for SEO, content, and digital workflows.
Decimal To Binary Converter
Fast, free, and reliable online Decimal To Binary Converter for SEO, content, and digital workflows.
Decimal To Hex Converter
Fast, free, and reliable online Decimal To Hex Converter for SEO, content, and digital workflows.
English To Binary Converter
Fast, free, and reliable online English To Binary Converter for SEO, content, and digital workflows.
Hex To Ascii Converter
Fast, free, and reliable online Hex To Ascii Converter for SEO, content, and digital workflows.
Hex To Binary Converter
Fast, free, and reliable online Hex To Binary Converter for SEO, content, and digital workflows.
Hex To Decimal Converter
Fast, free, and reliable online Hex To Decimal Converter for SEO, content, and digital workflows.
Hex To Text Converter
Fast, free, and reliable online Hex To Text Converter for SEO, content, and digital workflows.
Length Converter
Convert between different units of length.
Power Converter
Fast, free, and reliable online Power Converter for SEO, content, and digital workflows.
Pressure Converter
Fast, free, and reliable online Pressure Converter for SEO, content, and digital workflows.
Speed Converter
Fast, free, and reliable online Speed Converter for SEO, content, and digital workflows.
Temperature Converter
Fast, free, and reliable online Temperature Converter for SEO, content, and digital workflows.
Text To Ascii Converter
Fast, free, and reliable online Text To Ascii Converter for SEO, content, and digital workflows.
Text To Binary Converter
Fast, free, and reliable online Text To Binary Converter for SEO, content, and digital workflows.
Text To Hex Converter
Fast, free, and reliable online Text To Hex Converter for SEO, content, and digital workflows.
Time Converter
Fast, free, and reliable online Time Converter for SEO, content, and digital workflows.
Torque Converter
Fast, free, and reliable online Torque Converter for SEO, content, and digital workflows.
Unit Converter
Fast, free, and reliable online Unit Converter for SEO, content, and digital workflows.
Voltage Converter
Fast, free, and reliable online Voltage Converter for SEO, content, and digital workflows.
Volume Converter
Fast, free, and reliable online Volume Converter for SEO, content, and digital workflows.
Weight Converter
Convert between different units of weight.
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Why Use FreeToolsAll?
Precise Conversions
All unit conversions use accurate conversion factors based on international standards.
Instant Results
See conversion results update in real time as you type. No need to press any button.
All Unit Systems
Convert between metric, imperial, US customary, and scientific unit systems.
Frequently Asked Questions
How many feet are in a meter?
1 meter = 3.28084 feet. Use the Length Converter for instant conversion between any length units including meters, feet, inches, centimeters, miles, and kilometers.
How do I convert Celsius to Fahrenheit?
Formula: F = (C × 9/5) + 32. Use the Temperature Converter for instant results. For example, 100°C = 212°F.
How many bytes are in a gigabyte?
1 gigabyte (GB) = 1,073,741,824 bytes (1024³). In SI units, 1 gigabyte = 1,000,000,000 bytes. Use the Byte Converter to convert between all digital storage units.
All Tools Are 100% Free
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