Energy Converter
Convert energy and work units used in physics, nutrition, and utilities.
Conversion Result
About this tool
Context, privacy, and common questions—meant to be read alongside the step-by-step guide below.
Convert energy with the joule as SI base in this tool. Includes nutrition calories (thermochemical), kilowatt-hours for electricity bills, BTU (IT), and foot-pounds.
Handy for students, HVAC rough checks, and fitness math.
How to use Energy Converter
Use the sections below from top to bottom — they match the order of the controls on this page.
Before you begin
- Read the label on every field (percent vs decimal, months vs years, currency codes, etc.).
- Match the decimal separator the form expects (dot vs comma).
What to do
- Open Energy Converter.
- Fill every required input.
- Pick the formula mode, interest type, or preset if the UI offers one.
- Press calculate and read each output field.
- Change one variable at a time to see how sensitive the result is.
- Clear the form when you switch scenarios.
Understanding the result
Outputs are usually rounded for display — keep intermediate values when you need spreadsheet-level precision.
If it does not work
- Surprising totals: double-check units and whether interest compounds monthly vs annually.
Helpful tips
- Rounding is usually shown to a fixed number of decimals; internal precision may differ.
- Currency tools may use static or delayed rates—check the disclaimer on the page.
When you are finished
On a shared computer, close this tab. Bookmark the page if you will need it again, and save anything important to your own device or notes.
Safety & privacy
- Results are informational only, not financial, tax, legal, or medical advice.
- Double-check critical numbers before contracts, loans, or health decisions.