Health Unit Converter Online

Your measurements

Choose your units, then enter the details you want to use.

Your estimate will appear here

Complete the relevant fields and select Calculate. Changes to your inputs clear the previous result.

Educational estimates, with their equations and assumptions. They do not diagnose a condition or prescribe a treatment.

Method, assumptions & sources

Who this is for

General arithmetic conversions. No health classification.

How it works

Exact factors: 1 lb = 0.45359237 kg; 1 in = 2.54 cm; 1 ft = 12 in; 1 mile = 1609.344 m. °F = °C × 1.8 + 32; K = °C + 273.15. Decimal feet are different from feet-and-inches notation.

Keep in mind

Results are displayed at a practical precision but retain full precision internally.
Temperature conversion does not diagnose fever. Temperatures below absolute zero and negative physical lengths/masses are rejected.

Sources

NIST: SI unit conversion factors (opens in a new tab)