Unit Converter — Data, Speed, Area, Volume & Cooking

Unit Converter

Convert data storage, speed, area, volume and cooking measurements instantly. Ingredient-aware cups-to-grams and an oven temperature converter included. 100% free.

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All units

Oven temperature converter

How to Use the Unit Converter

  1. Choose a category. Pick Data, Speed, Area, Volume or Cooking from the tabs.
  2. Enter a value and select the unit you are converting from and the unit you want the answer in. Use the swap button to flip them.
  3. Read the result instantly. The big number updates as you type, and the full table shows your value in every unit at once.
  4. Cook with confidence. In Cooking, pick an ingredient to convert cups, tablespoons and millilitres to grams and ounces, and use the oven temperature converter for °C, °F and gas marks.

About These Conversions

Data covers bits and bytes through petabytes, including both decimal units (1 KB = 1,000 bytes, used by storage makers) and binary units (1 KiB = 1,024 bytes, used by operating systems). Speed handles metres per second, km/h, mph, knots, feet per second and more. Area ranges from square millimetres to acres, hectares and square miles, and Volume spans millilitres, litres, cubic metres and US and imperial cups, pints, quarts and gallons.

Cooking is the trickiest, because a cup of flour and a cup of honey do not weigh the same. This converter uses the density of the ingredient you select to translate between volume (cups, tablespoons, millilitres) and weight (grams, ounces), so your cups-to-grams answers are realistic. The oven temperature tool converts between Celsius, Fahrenheit and British gas marks.

Everything is calculated instantly in your browser with no uploads. Cooking weight conversions are good approximations — ingredient density varies with brand, humidity and how tightly it is packed, so use a kitchen scale when precision matters for baking.

Common Use Cases

💾 Storage & downloadsConvert GB to MB, work out file sizes and bandwidth.
🍳 Recipes & bakingTurn cups into grams for accurate, repeatable baking.
🍽️ Oven settingsConvert recipe temperatures between °C, °F and gas marks.
🚗 SpeedSwitch between mph, km/h and knots for travel and sport.
🏠 Property & landConvert square feet, square metres, acres and hectares.
⚖️ VolumeConvert litres, gallons and fluid ounces for any task.

Why Choose This Converter

  • Five categories in oneData, speed, area, volume and cooking without switching tools.
  • Ingredient-aware cookingReal cups-to-grams using the density of each ingredient.
  • Decimal & binary dataBoth KB (1000) and KiB (1024) so the numbers are right.
  • See every unit at onceA live table converts your value into all units instantly.
  • Oven temperaturesCelsius, Fahrenheit and gas marks side by side.
  • Fast & privateInstant results in your browser, nothing uploaded.

Frequently Asked Questions

Why are there both KB and KiB for data?
Storage manufacturers use decimal units where 1 KB = 1,000 bytes, while operating systems often use binary units where 1 KiB = 1,024 bytes. That difference is why a "1 TB" drive shows as about 931 GiB on your computer. This tool includes both so you can match whichever system you need.
How accurate are the cups-to-grams conversions?
They use standard densities for each ingredient, so they are good approximations. Real-world weight varies with brand, humidity and how tightly you pack the ingredient, so for precise baking a kitchen scale is still best.
What is a gas mark?
Gas mark is an oven temperature scale used mainly in the UK. For example, gas mark 4 is about 180°C or 356°F. The oven converter shows Celsius, Fahrenheit and gas mark together.
Does it support US and imperial volumes?
Yes. The Volume and Cooking categories include US cups, pints, quarts and gallons as well as metric millilitres and litres. A US cup (about 237 ml) differs from an imperial cup, so pick the right one for your recipe.
How do I convert mph to km/h?
Multiply miles per hour by 1.60934. The Speed category does this for you and also covers metres per second, knots and feet per second.
Is it free and private?
Yes. It is completely free with no sign-up, and all calculations run locally in your browser, so nothing you type is sent anywhere.

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