Unit Converter Guide: Common Unit Conversion Reference
A unit converter removes the mental math from everyday tasks—cooking, travel, construction, and schoolwork. Knowing how conversions work helps you spot errors before they cost you.
Metric vs Imperial
Most of the world uses metric, but recipes, tires, and real estate listings often mix units. Convert length, weight, volume, and temperature with confidence using the tool.
Temperature Conversions
To convert Celsius to Fahrenheit, multiply by 9/5 and add 32. A quick reference: 0°C = 32°F, 20°C is about 68°F, and 37°C is body temperature.
Common Cooking Conversions
A cup is 240 ml in most modern measurements, a tablespoon is 15 ml, and a teaspoon is 5 ml. Scales are more reliable than volume for baking.
Precision and Rounding
Choose the number of decimal places that fits the task. Construction tolerances need millimeters; a recipe is fine with whole grams.
Speed, Area, and Data Units
Less obvious conversions trip people up too. Speed comes in km/h or mph, area in square meters or square feet, and data in MB, GB, or GiB. Each field has its own convention, so convert with the right unit set.
For data, be careful with binary prefixes: a "1 TB" drive may report as 931 GiB because manufacturers use decimal units while operating systems use binary. The converter can show both.
How to Convert Units
- Choose the category—length, weight, volume, temperature, speed, or data.
- Enter the value and select the source and target units.
- Read the result and set the decimal precision the task requires.
For mixed-unit problems, convert everything to one system first, then do the calculation to avoid unit-mixing errors.
Quick tip: when a recipe or blueprint mixes units, convert everything to one system before starting. Mixing systems mid-task is the classic source of kitchen and workshop disasters. One system keeps every number consistent, so mistakes surface immediately.