A unit converter is a tool that transforms a measurement from one unit to an equivalent value in another unit within the same category. GlintKit's unit converter supports 8 measurement categories and over 60 individual units, with all conversions calculated instantly in your browser without transmitting any data.
How It Works
- Select a category — choose from Length, Weight, Temperature, Volume, Area, Speed, Time, or Data.
- Choose your units — select the unit you're converting from and the unit you're converting to using the dropdowns.
- Enter a value — type the number you want to convert. The result updates instantly.
- Copy or swap — click Copy to copy the result to your clipboard, or click the Swap button to reverse the conversion direction.
Supported Categories
- Length: Millimeter, centimeter, meter, kilometer, inch, foot, yard, mile, nautical mile
- Weight: Milligram, gram, kilogram, metric ton, ounce, pound, stone
- Temperature: Celsius, Fahrenheit, Kelvin
- Volume: Milliliter, liter, cubic meter, teaspoon, tablespoon, fluid ounce, cup, pint, gallon
- Area: mm², cm², m², km², hectare, acre, square foot, square mile
- Speed: Meters per second, km/h, mph, knots, feet per second
- Time: Millisecond, second, minute, hour, day, week, year
- Data: Byte, kilobyte, megabyte, gigabyte, terabyte, bit, kilobit, megabit
Why Use GlintKit's Unit Converter?
Many unit converter websites are cluttered with advertisements, require accounts, or silently track your usage. GlintKit's converter is built differently:
- No tracking: Conversions happen entirely in JavaScript. Nothing is logged or sent to servers.
- No ads: The page loads fast and is distraction-free.
- Precise results: The converter uses full-precision conversion factors and handles large numbers, small decimals, and scientific notation correctly.
- Swap functionality: Instantly reverse a conversion without re-entering values.
- Copy to clipboard: Copy the full conversion result with one click.
Common Conversions
Some of the most frequently used unit conversions:
- 1 kilometer = 0.621371 miles
- 1 kilogram = 2.20462 pounds
- 1 meter = 3.28084 feet
- 0°C = 32°F (water freezes)
- 100°C = 212°F (water boils)
- 1 liter = 0.264172 US gallons
- 1 inch = 2.54 centimeters
- 1 GB = 1,024 MB
Frequently Asked Questions
What units can I convert with this tool?
This converter supports 8 categories: length (9 units), weight (7 units), temperature (3 units), volume (9 units), area (8 units), speed (5 units), time (7 units), and data storage (8 units) — over 60 units in total.
How accurate is this unit converter?
The converter uses precise conversion factors and JavaScript's floating-point arithmetic, accurate to 6–8 significant figures for most conversions. For very large or very small values, results are shown in scientific notation.
Why does temperature conversion look different?
Temperature scales use different zero points — 0°C is not the same as 0 Kelvin — so temperature conversion requires addition and subtraction as well as multiplication. This is different from most other unit categories, which are simple ratio conversions (e.g., 1 km = 1000 m, so 5 km = 5000 m).
Is my data stored or sent anywhere?
No. All conversions happen locally in your browser. Nothing is transmitted. Any conversion history you save stays only in your browser's localStorage on your device.