Length, weight, and temperature conversions
This converter handles the most commonly needed unit types: length (metric and imperial), weight (kilograms, pounds, ounces, and more), and temperature (Celsius, Fahrenheit, Kelvin) — covering the conversions people search for most often in cooking, travel, fitness, and everyday measurement.
Temperature conversion formulas
Celsius to Fahrenheit: °F = °C × 9/5 + 32. Fahrenheit to Celsius: °C = (°F − 32) × 5/9. Celsius to Kelvin: K = °C + 273.15. These aren't simple ratios like length or weight, since each scale has a different zero point.
Why metric and imperial coexist
Most of the world uses the metric system, but a few countries (notably the US) primarily use imperial units for everyday measurement, which is why converters like this remain useful for travel, recipes, and international communication.
Frequently asked questions
Why do my numbers have long decimals? Some conversions (like inches to centimeters) don't divide evenly — this tool rounds to 4 decimal places for practical accuracy without excessive digits.
Can I convert between length and weight? No — length and weight are different physical quantities, so conversions only work within the same category (e.g., meters to feet, not meters to kilograms).