# Kilowatt-hours to BTU (kWh to BTU)

> Convert kilowatt-hours to BTU: 1 kWh = 3412.14 BTU. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.

- Page id: `kwh-to-btu` · Quantity: Energy (`energy`, base unit J) · Tool: `convert_units`
- Canonical page: https://tttkmbb.com/conversion/kwh-to-btu · This document: https://tttkmbb.com/conversion/kwh-to-btu.md · JSON: https://tttkmbb.com/conversion/kwh-to-btu.json (add `?value=` for a result)

## Formula

- `1 kWh = 3412.14 BTU`
- `BTU = kilowatt-hours × 3412.141633`
- Reverse: `kilowatt-hours = BTU × 0.0002930710702`

The factor follows from the SI definitions of both units (NIST SP 811); values below are rounded to 6 significant figures, the API returns up to 12.

## Worked examples

- 5 kWh = 17060.7 BTU
- 12.5 kWh = 42651.8 BTU
- 100 kWh = 341214 BTU

## Conversion table

| Kilowatt-hours (kWh) | BTU (BTU) |
| --- | --- |
| 1 | 3412.14 |
| 2 | 6824.28 |
| 3 | 10236.4 |
| 4 | 13648.6 |
| 5 | 17060.7 |
| 6 | 20472.8 |
| 7 | 23885 |
| 8 | 27297.1 |
| 9 | 30709.3 |
| 10 | 34121.4 |
| 15 | 51182.1 |
| 20 | 68242.8 |
| 25 | 85303.5 |
| 30 | 102364 |
| 40 | 136486 |
| 50 | 170607 |
| 75 | 255911 |
| 100 | 341214 |
| 200 | 682428 |
| 250 | 853035 |
| 500 | 1706070 |
| 1000 | 3412140 |

## API

- `GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=kWh&to_unit=BTU` → unified JSON envelope with `result.values.result`, `formula`, `factor`, `sources`, `freshness`
- MCP: server `https://tttkmbb.com/mcp`, tool `convert_units` with `{"value":5,"from_unit":"kWh","to_unit":"BTU"}`
- All energy units: https://tttkmbb.com/api/v1/units?quantity=energy · full converter: [Energy Converter](https://tttkmbb.com/conversion/energy.md)
- Authentication: none. Freshness: `static` (fixed conversion factors).

## FAQ

**How many BTU are in one kilowatt-hour?**

1 kWh = 3412.14 BTU. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.

**What is the formula to convert kilowatt-hours to BTU?**

Multiply the value in kilowatt-hours by 3412.141633: BTU = kilowatt-hours × 3412.141633. For example, 5 kWh = 17060.7 BTU.

**How do I convert BTU back to kilowatt-hours?**

Multiply by the inverse factor 0.0002930710702 (kilowatt-hours = BTU × 0.0002930710702), or use the BTU-to-kilowatt-hours page.

## Related conversions

- [BTU to kilowatt-hours](https://tttkmbb.com/conversion/btu-to-kwh.md) (reverse)
- [Kilocalories (food calories) to Kilojoules](https://tttkmbb.com/conversion/kcal-to-kj.md)
- [Kilojoules to Kilocalories (food calories)](https://tttkmbb.com/conversion/kj-to-kcal.md)
- [Joules to Calories (small, thermochemical)](https://tttkmbb.com/conversion/joules-to-calories.md)
- [Calories (small, thermochemical) to Joules](https://tttkmbb.com/conversion/calories-to-joules.md)
- [Kilowatt-hours to Megajoules](https://tttkmbb.com/conversion/kwh-to-mj.md)
- [Megajoules to Kilowatt-hours](https://tttkmbb.com/conversion/mj-to-kwh.md)
- [BTU to Joules](https://tttkmbb.com/conversion/btu-to-joules.md)
- [Joules to BTU](https://tttkmbb.com/conversion/joules-to-btu.md)

## Data Sources

- NIST Special Publication 811 – Guide for the Use of the International System of Units (SI), Appendix B conversion factors — https://www.nist.gov/pml/special-publication-811 (standard, retrieved 2026-09-24)
- BIPM – The International System of Units (SI Brochure, 9th edition) — https://www.bipm.org/en/publications/si-brochure (standard, retrieved 2026-09-24)
- Wikipedia – Conversion of units — https://en.wikipedia.org/wiki/Conversion_of_units (reference, retrieved 2026-09-24)