📏 Free Unit Converters

Free unit converters that run in your browser: length, weight, temperature, speed, area, volume and data storage. Instant, accurate, with a full table. No signup.

✔ 8 free tools✔ No signup✔ No watermark✔ In your browser

A set of free MakeToolz unit converters, each with instant results and a full table showing your value in every unit at once. Convert length, weight, temperature, speed, area, volume and data storage between all the common units, using exact conversion factors. Every tool runs in your browser, needs no signup, and works live as you type.

Measurement (4)

Length, weight, temperature and speed.

📏 Length ConverterConvert length between cm, inches, feet, mm, km and miles. ⚖️ Weight ConverterConvert weight between kg, lbs, grams, ounces and stone. 🌡️ Temperature ConverterConvert temperature between Celsius, Fahrenheit and Kelvin. 🚗 Speed ConverterConvert mph, km/h, m/s, knots and more instantly.

Space & Capacity (2)

Area and volume in metric and imperial units.

📐 Area ConverterConvert square feet, square meters, acres, hectares and more. 🧪 Volume ConverterConvert liters, gallons, cups, mL and more instantly.

Digital (2)

Data storage in decimal and binary units.

💾 Data Storage ConverterConvert bytes, KB, MB, GB, TB and binary units instantly. 🔢 Number Base ConverterConvert numbers between binary, decimal, hex and octal.

Frequently Asked Questions

Are these unit converters free?
Yes. Every unit converter is free with no signup and no limits, and they all run in your browser.
Are the conversions accurate?
Yes. Each converter uses exact conversion factors, so results are precise to several decimal places.
Do they show all units at once?
Yes. Every converter has a full table that shows your value in all supported units at the same time, not just the one you picked.
Do I need to install anything?
No. These are web tools that run in your browser, so there is nothing to install and nothing is uploaded.

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