Home › Unit Conversion › Miles per US gallon (mpg) to Miles per imperial gallon (UK mpg)
Miles per US gallon (mpg) to Miles per imperial gallon (UK mpg) (mpg (US) to mpg (UK))
Convert miles per US gallon (mpg) to miles per imperial gallon (UK mpg) with the formula mpg (UK) = mpg (US) × 1.200950. Conversion table and worked examples, with JSON API and MCP access.
Formula
mpg (UK) = mpg (US) × 1.200950
mpg (UK) = mpg (US) × 1.200950 — reverse: mpg (US) = mpg (UK) × 0.832674
Non-linear conversion: the formula above is applied directly (no single multiplication factor).
Worked examples
- 7.5 mpg (US) = 9.00712 mpg (UK)
- 30 mpg (US) = 36.0285 mpg (UK)
- 45 mpg (US) = 54.0427 mpg (UK)
Miles per US gallon (mpg) to miles per imperial gallon (UK mpg) conversion table
| Miles per US gallon (mpg) (mpg (US)) | Miles per imperial gallon (UK mpg) (mpg (UK)) |
|---|---|
| 3 | 3.60285 |
| 4 | 4.8038 |
| 5 | 6.00475 |
| 6 | 7.2057 |
| 7 | 8.40665 |
| 8 | 9.6076 |
| 9 | 10.8085 |
| 10 | 12.0095 |
| 12 | 14.4114 |
| 15 | 18.0142 |
| 20 | 24.019 |
| 25 | 30.0237 |
| 30 | 36.0285 |
| 35 | 42.0332 |
| 40 | 48.038 |
| 45 | 54.0427 |
| 50 | 60.0475 |
| 60 | 72.057 |
| 70 | 84.0665 |
| 80 | 96.076 |
| 100 | 120.095 |
FAQ
What is the formula to convert miles per US gallon (mpg) to miles per imperial gallon (UK mpg)?
mpg (UK) = mpg (US) × 1.200950. For example, 7.5 mpg (US) = 9.00712 mpg (UK).
How do I convert miles per imperial gallon (UK mpg) back to miles per US gallon (mpg)?
mpg (US) = mpg (UK) × 0.832674; the miles per imperial gallon (UK mpg)-to-miles per US gallon (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
- Miles per imperial gallon (UK mpg) to miles per US gallon (mpg) (reverse)
- Fuel Economy Converter — all fuel economy units in one tool
- Miles per US gallon (mpg) to Liters per 100 km
- Liters per 100 km to Miles per US gallon (mpg)
- Miles per imperial gallon (UK mpg) to Liters per 100 km
- Liters per 100 km to Miles per imperial gallon (UK mpg)
- Kilometers per liter to Liters per 100 km
- Liters per 100 km to Kilometers per liter
- Miles per US gallon (mpg) to Kilometers per liter
- Kilometers per liter to Miles per US gallon (mpg)
Machine access
- API:
GET https://tttkmbb.com/api/v1/convert?value=7.5&from_unit=mpg_us&to_unit=mpg_uk - MCP: server
https://tttkmbb.com/mcp, toolconvert_unitswith{"value":7.5,"from_unit":"mpg_us","to_unit":"mpg_uk"} - Markdown: https://tttkmbb.com/conversion/mpg-to-mpg-uk.md · JSON: https://tttkmbb.com/conversion/mpg-to-mpg-uk.json (add
?value=for a result) · Units: /api/v1/units?quantity=fuel-economy - OpenAPI operationId:
convert_units. Freshness:static. Authentication: none.