BIZOMAT MAKEOS · Units
Energy and Work Converter
What is this energy in other units?
Convert a energy between SI, metric and US customary units and see it in every listed unit at once.
Open the calculatorRuns in your browser. No account needed.
How this tool works
Inputs, units and where to find them
| Input | Unit | Typical source |
|---|---|---|
| Energy value | The number exactly as written on the drawing, data sheet or quote. | |
| Unit of the entered value | choice | The unit printed beside the value; check prefixes such as k, M and m. |
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: Energy value
- What it is
- The energy or work you want to convert, exactly as written on the bill, data sheet or quote.
- Units and format
- Enter a plain number with no unit. Negative values are accepted. Required: the tool does not calculate until every input is valid.
- Example
- The form opens with 1 as a worked example. It is an illustration, not a recommended value: replace it with your own figure.
- Get it right
- Energy is not power: kWh is an amount of energy, kW is a rate. Use the power converter for rates.
What this means: Unit of the entered value
- What it is
- The unit the energy was given in. The tool converts from this unit to every other listed energy unit.
- Units and format
- Choose one of 10 options from the list: J; kJ; MJ; Wh; kWh; cal (IT); kcal (IT); BTU (IT); ft·lbf; therm (EC).
- Example
- The form opens with “kWh” selected as a worked example. Choose the option that matches your case.
- Get it right
- Check whether a calorie value is in cal or kcal; food labels often write kcal as “Calories”.
Method and formulas
- Value in J = entered value × factor of the entered unit.
- Value in each other unit = SI value ÷ that unit’s factor.
- Factors used (1 unit = … J): kJ 1000; MJ 1000000; Wh 3600; kWh 3600000; cal (IT) 4.1868; kcal (IT) 4186.8; BTU (IT) 1055.05585262; ft·lbf 1.3558179483314; therm (EC) 105506000.
- Example: 1 kWh = 3,600,000 J.
Limitations
- Displayed values are rounded to eight decimal places; small values use significant figures.
- Example values are illustrations. Replace them with values for your actual task.
Typical uses
- Convert energy values on drawings, data sheets and quotes
- Check supplier data given in other units
Who it is for
- Engineers
- Technicians
- Buyers and estimators
What you get
- The energy in each listed unit
- Value in J
Interpreting the result
- Use the unit your specification is written in, and keep the original value on record.
References
- Machinery’s Handbook, 29th edition (Industrial Press, 2012), printed pp. 2695–2697. Topic reference; no source tables or recommended settings are reproduced.
- BIPM: The International System of Units (SI brochure) — https://www.bipm.org/en/publications/si-brochure
Learn the Concepts Behind This Tool
These BIZOMAT Library readings explain the method this tool uses, with worked examples.
Useful alongside · BIZOMAT original book
Cost, emissions and choosing gas or electric
What it covers: Compare gas and electric process heat per useful gigajoule, calculate carbon dioxide from the chemistry, find the break-even price and grid factor, and rank the improvements for TF-120.
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.