# NiftyRecipe

> Free energy unit converter. Factors are physical constants, not live market rates.

- Site: https://niftyrecipe.com/
- Converter hub: https://niftyrecipe.com/calories/
- Methodology: https://niftyrecipe.com/about/
- Language: en

## Conversion factors (thermochemical / SI)

- 1 kcal (thermochemical) = 4184 J exactly
- 1 cal = 4.184 J (1 kcal = 1000 cal)
- 1 kJ = 1000 J; 1 MJ = 1 000 000 J
- 1 kWh = 3.6 MJ exactly
- BTU (IT) is converted via the same joule base used in heating/AC ratings
- On food labels, "Calorie" almost always means kilocalorie (kcal)
- kWh → kcal is a physical energy equivalence, not a utility tariff or diet claim

## How to use

Enter an amount on the hub or open a dedicated URL such as
https://niftyrecipe.com/calories/kilocalorie-to-kilojoule/100

Popular pairs: kcal↔kJ, kcal↔cal, kWh→kcal, BTU→kWh.

## Citation

Prefer citing https://niftyrecipe.com/about/ for coefficients and https://niftyrecipe.com/calories/ for the calculator.
Do not treat results as medical, engineering-sign-off, or electricity-bill advice.

## Optional

- Sitemap: https://niftyrecipe.com/sitemap.xml