# Miles per imperial gallon (UK mpg) to Kilometers per liter (mpg (UK) to km/L)

> Convert miles per imperial gallon (UK mpg) to kilometers per liter with the formula km/L = mpg (UK) × 0.354006. Conversion table and worked examples, with JSON API and MCP access.

- Page id: `mpg-uk-to-km-per-liter` · Quantity: Fuel economy (`fuel-economy`, base unit L/100km) · Tool: `convert_units`
- Canonical page: https://tttkmbb.com/conversion/mpg-uk-to-km-per-liter · This document: https://tttkmbb.com/conversion/mpg-uk-to-km-per-liter.md · JSON: https://tttkmbb.com/conversion/mpg-uk-to-km-per-liter.json (add `?value=` for a result)

## Formula

- `km/L = mpg (UK) × 0.354006`
- `km/L = mpg (UK) × 0.354006`
- Reverse: `mpg (UK) = km/L × 2.824809`

Non-linear conversion: apply the formula directly; there is no single multiplication factor.

## Worked examples

- 7.5 mpg (UK) = 2.65505 km/L
- 30 mpg (UK) = 10.6202 km/L
- 45 mpg (UK) = 15.9303 km/L

## Conversion table

| Miles per imperial gallon (UK mpg) (mpg (UK)) | Kilometers per liter (km/L) |
| --- | --- |
| 3 | 1.06202 |
| 4 | 1.41602 |
| 5 | 1.77003 |
| 6 | 2.12404 |
| 7 | 2.47804 |
| 8 | 2.83205 |
| 9 | 3.18606 |
| 10 | 3.54006 |
| 12 | 4.24807 |
| 15 | 5.31009 |
| 20 | 7.08012 |
| 25 | 8.85015 |
| 30 | 10.6202 |
| 35 | 12.3902 |
| 40 | 14.1602 |
| 45 | 15.9303 |
| 50 | 17.7003 |
| 60 | 21.2404 |
| 70 | 24.7804 |
| 80 | 28.3205 |
| 100 | 35.4006 |

## API

- `GET https://tttkmbb.com/api/v1/convert?value=7.5&from_unit=mpg_uk&to_unit=km%2FL` → unified JSON envelope with `result.values.result`, `formula`, `factor`, `sources`, `freshness`
- MCP: server `https://tttkmbb.com/mcp`, tool `convert_units` with `{"value":7.5,"from_unit":"mpg_uk","to_unit":"km/L"}`
- All fuel economy units: https://tttkmbb.com/api/v1/units?quantity=fuel-economy · full converter: [Fuel Economy Converter](https://tttkmbb.com/conversion/fuel-economy.md)
- Authentication: none. Freshness: `static` (fixed conversion factors).

## FAQ

**What is the formula to convert miles per imperial gallon (UK mpg) to kilometers per liter?**

km/L = mpg (UK) × 0.354006. For example, 7.5 mpg (UK) = 2.65505 km/L.

**How do I convert kilometers per liter back to miles per imperial gallon (UK mpg)?**

mpg (UK) = km/L × 2.824809; the kilometers per liter-to-miles per imperial gallon (UK mpg) page applies it directly.

**Why is there no single multiplication factor?**

Fuel-economy units are reciprocal (distance per volume versus volume per distance), so the conversion divides a constant by the value instead of multiplying.

## Related conversions

- [Kilometers per liter to miles per imperial gallon (UK mpg)](https://tttkmbb.com/conversion/km-per-liter-to-mpg-uk.md) (reverse)
- [Miles per US gallon (mpg) to Liters per 100 km](https://tttkmbb.com/conversion/mpg-to-l-per-100km.md)
- [Liters per 100 km to Miles per US gallon (mpg)](https://tttkmbb.com/conversion/l-per-100km-to-mpg.md)
- [Miles per imperial gallon (UK mpg) to Liters per 100 km](https://tttkmbb.com/conversion/mpg-uk-to-l-per-100km.md)
- [Liters per 100 km to Miles per imperial gallon (UK mpg)](https://tttkmbb.com/conversion/l-per-100km-to-mpg-uk.md)
- [Kilometers per liter to Liters per 100 km](https://tttkmbb.com/conversion/km-per-liter-to-l-per-100km.md)
- [Liters per 100 km to Kilometers per liter](https://tttkmbb.com/conversion/l-per-100km-to-km-per-liter.md)
- [Miles per US gallon (mpg) to Kilometers per liter](https://tttkmbb.com/conversion/mpg-to-km-per-liter.md)
- [Kilometers per liter to Miles per US gallon (mpg)](https://tttkmbb.com/conversion/km-per-liter-to-mpg.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)