BIZOMAT MAKEOS · Units
Temperature Converter
What is this temperature, or temperature difference, in other scales?
Convert a temperature or a temperature difference between Celsius, Fahrenheit, kelvin and Rankine.
Open the calculatorRuns in your browser. No account needed.
How this tool works
Inputs, units and where to find them
| Input | Unit | Typical source |
|---|---|---|
| Value type | choice | A reading such as 150 °C, or a change such as a 50 °C rise; differences convert without the offset. |
| Value | The number as written. | |
| Unit of the entered value | choice | The scale of the entered value. |
What each input means
Open an input to see what it is, its units, the worked example and the common mistakes, with a small diagram.
What this means: Value type
- What it is
- Whether the number is a temperature reading (a point on the scale) or a temperature difference (a change or rise). Readings convert with the scale offsets; differences do not.
- Units and format
- Choose one of 2 options from the list: A temperature (a reading); A temperature difference (a change).
- Example
- The form opens with “A temperature (a reading)” selected as a worked example. Choose the option that matches your case.
- Get it right
- A rise of 10 °C is 18 °F, but a reading of 10 °C is 50 °F; choose difference for rises and changes.
What this means: Value
- What it is
- The temperature reading or temperature change you want to convert, as written.
- Units and format
- Enter a plain number with no unit. The form accepts -1000000 to 1000000. Required: the tool does not calculate until every input is valid.
- Example
- The form opens with 100 as a worked example. It is an illustration, not a recommended value: replace it with your own figure.
- Get it right
- A reading below absolute zero is rejected; check the sign and the scale.
What this means: Unit of the entered value
- What it is
- The temperature scale the value is in: Celsius, Fahrenheit, kelvin or Rankine.
- Units and format
- Choose one of 4 options from the list: °C; °F; K; °R.
- Example
- The form opens with “°C” selected as a worked example. Choose the option that matches your case.
- Get it right
- Kelvin and Rankine are absolute scales that start at absolute zero.
Method and formulas
- Readings: K = °C + 273.15; °F = °C × 9/5 + 32; °R = K × 9/5.
- Differences: 1 °C = 1 K = 1.8 °F = 1.8 °R (no offset).
- Example: 100 °C is 212 °F and 373.15 K.
Limitations
- Readings below absolute zero are rejected.
- Example values are illustrations. Replace them with values for your actual task.
Typical uses
- Convert heat-treatment and process temperatures
- Convert a temperature rise for thermal expansion calculations
Who it is for
- Engineers
- Technicians
- Buyers and estimators
What you get
- Value in °C, °F, K and °R
Interpreting the result
- Use the difference mode for expansion and heating calculations.
References
- Machinery’s Handbook, 29th edition (Industrial Press, 2012), printed pp. 2695–2696. Topic reference; no source tables or recommended settings are reproduced.
BIZOMAT tools are screening and decision-support utilities. Verify important financial, engineering, safety, legal or operational decisions using appropriate professional standards and your organisation’s approved data.