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Choose units and enter a value to convert.
Use this free online unit converter to convert common measurements quickly and accurately. Enter a value, choose the type of measurement, select the unit you want to convert from and the unit you want to convert to. The result appears instantly.
This tool is designed for everyday conversions, not complicated scientific work. It is useful when you need to convert metric to imperial units, imperial to metric units, recipe measurements, travel distances, product dimensions, temperatures, weights, volumes and more.
Convert Common Units Online
A unit converter is useful because measurements are not always shown in the same system. One website may list a distance in kilometres, another may use miles. A recipe may use millilitres, cups or ounces. Product dimensions may be shown in centimetres, inches, metres or feet.
With this converter, you can quickly switch between common units without searching for formulas or doing the maths manually.
Popular examples include:
- Kilometres to miles
- Miles to kilometres
- Metres to feet
- Feet to metres
- Centimetres to inches
- Inches to centimetres
- Kilograms to pounds
- Pounds to kilograms
- Grams to ounces
- Litres to gallons
- Millilitres to cups
- Celsius to Fahrenheit
- Fahrenheit to Celsius
What Can You Use This Unit Converter For?
This unit converter can help with quick everyday measurement conversions, including:
Travel and distance
Convert miles to kilometres, kilometres to miles, metres to feet or feet to metres when checking travel distances, routes, running distances or international measurements.
Cooking and recipes
Convert between millilitres, litres, cups, tablespoons, teaspoons, grams and ounces when using recipes from different countries.
Shopping and product dimensions
Convert centimetres to inches, inches to centimetres, metres to feet or kilograms to pounds when comparing product sizes, package weights or delivery information.
Fitness and health
Convert weight, distance and speed units when comparing training plans, race distances, workout data or body weight measurements.
DIY and home projects
Convert length, area, volume and weight measurements when working with furniture, materials, paint, flooring, garden measurements or home improvement projects.
Metric to Imperial Converter
One of the most common reasons to use a unit converter is to switch between metric and imperial measurements.
The metric system uses units such as metres, kilometres, grams, kilograms, millilitres, litres and Celsius. Imperial and US customary measurements use units such as inches, feet, yards, miles, ounces, pounds, gallons and Fahrenheit.
This tool helps bridge that gap by letting you convert between both systems quickly.
Supported Unit Categories
This unit converter is intended to support the most useful everyday measurement categories, including:
- Length and distance
- Weight and mass
- Volume
- Temperature
- Area
- Speed
- Time
- Data storage
More specific converter tools may be added separately over time, such as a currency converter, cooking measurement converter, data storage converter and time zone converter.
Why Use Toolcetra’s Unit Converter?
The goal of this tool is simple: fast conversions without unnecessary clutter.
You do not need to create an account, download an app or scroll through complicated explanations. Choose the units, enter your value and get the converted result.
It works well for quick checks on desktop, tablet and mobile.
Unit Conversion Examples
Here are some common unit conversions people often need:
- 1 kilometre = 0.621 miles
- 1 mile = 1.609 kilometres
- 1 metre = 3.281 feet
- 1 foot = 30.48 centimetres
- 1 inch = 2.54 centimetres
- 1 kilogram = 2.205 pounds
- 1 pound = 0.454 kilograms
- 1 litre = 1,000 millilitres
For temperature, the conversion is slightly different because it uses a formula rather than a simple multiplier:
- Celsius to Fahrenheit: multiply by 9, divide by 5, then add 32
- Fahrenheit to Celsius: subtract 32, multiply by 5, then divide by 9
FAQ
What is a unit converter?
A unit converter is an online tool that changes a measurement from one unit into another. For example, it can convert kilometres to miles, kilograms to pounds, litres to gallons or Celsius to Fahrenheit.
Is this unit converter free?
Yes. This unit converter is free to use.
Can I convert metric to imperial units?
Yes. You can use this tool to convert between metric and imperial units, including metres to feet, kilometres to miles, kilograms to pounds and Celsius to Fahrenheit.
What are the most common unit conversions?
Some of the most common unit conversions are kilometres to miles, miles to kilometres, kilograms to pounds, pounds to kilograms, centimetres to inches, inches to centimetres, litres to gallons and Celsius to Fahrenheit.
Can I use this unit converter on mobile?
Yes. The unit converter is designed to work on mobile, tablet and desktop.
Is this unit converter accurate?
The converter should use standard conversion factors for common units. For everyday use, such as travel, cooking, shopping, fitness and DIY calculations, it is designed to give fast and reliable results.