Temperature Converter
Convert between Celsius, Fahrenheit and Kelvin. Temperature is an affine scale, so conversions use both a multiplier and an offset.
About temperature conversions
Temperature is the one common scale that does not share a zero point, which is why this converter applies an offset as well as a multiplier. Celsius and Kelvin use the same degree size, so converting between them is a pure shift of 273.15. Fahrenheit uses a smaller degree — 5/9 of a Celsius degree — and places its zero at −17.7778 °C.
Absolute zero is 0 K, −273.15 °C or −459.67 °F. Water freezes at 0 °C / 32 °F and boils at 100 °C / 212 °F at sea level; altitude moves the boiling point, so those are definitions rather than figures you would reproduce on a mountain.
- Weather and daily temperatures (Celsius in Tanzania).
- Cooking and oven settings — Celsius locally, Fahrenheit in US recipes.
- Body temperature (37 °C / 98.6 °F).
- Science and engineering, where Kelvin is the working unit.
Reading the answers. The arithmetic is exact; only the display is rounded. 37 °C is exactly 98.6 °F, while 36.6 °C displays as 97.9 °F.
The units in this converter
What each unit is and where it is normally used. Everything here is converted through the celsius.
- Celsius (°C)
- Celsius is the metric temperature scale: 0 °C is the freezing point of water and 100 °C its boiling point at sea level. It is the everyday scale in Tanzania and most of the world.
- Fahrenheit (°F)
- Fahrenheit places the freezing point of water at 32 °F and boiling at 212 °F. It is used mainly in the United States, for weather, cooking and body temperature.
- Kelvin (K)
- Kelvin is the SI base unit of temperature. It starts at absolute zero, the coldest temperature possible, and uses the same degree size as Celsius — so 0 °C is 273.15 K.
Tanzania reference points
Real quantities in temperature, shown in the units people actually use.
Tanzania's long-term mean monthly maximum temperature
28.2 °C · 82.76 °F · 301.35 K
The 1981–2010 baseline is 28.2 °C against 28.5 °C for 2012–2018, which the report reads as a warming trend. It is a national mean across meteorological stations, not the temperature in any one town.
Source: National Bureau of Statistics — National Climate Change Report 2019 (Tanzania Meteorological Agency station data) · verified 2026-09-14
Popular conversions
Convert from any temperature unit
Each unit has its own page with every other unit in the dimension, the exact factor for each, and worked values.
Frequently asked questions
How do I convert Celsius to Fahrenheit?
Multiply the Celsius value by 9/5 and add 32: °F = °C × 9/5 + 32. For example, 100°C = 212°F.
How do I convert Fahrenheit to Celsius?
Subtract 32 from the Fahrenheit value, then multiply by 5/9: °C = (°F − 32) × 5/9.
What is absolute zero in Celsius?
Absolute zero is 0 Kelvin, which equals −273.15°C or −459.67°F.
All temperature conversions
Every temperature conversion on Calculator, listed in full.