Convert length, weight and temperature units all in one place.
📖 How to Use
- Pick a category: Length, Weight, or Temperature. Switching categories automatically refreshes the "From" and "To" unit lists to match.
- Enter a value in the "Value" field.
- Choose the source and target units from the "From" and "To" dropdowns — for example, kilometers/feet/inches for length, kilograms/pounds/ounces for weight, or Celsius/Fahrenheit/Kelvin for temperature.
- The result updates automatically the moment you change the value or either unit — no button needed.
Note: Results are rounded to 4 decimal places, which is plenty precise for everyday use, but if you need more significant figures for scientific work, double-check with the raw conversion formula. Length and weight conversions scale everything through a metric base unit (meters, kilograms), while temperature conversions route through Celsius as an intermediate step — so the underlying math differs by category even though the interface looks the same.