Grams per Km to Grams per Mile Converter
Instantly convert grams per kilometer (g/km) to grams per mile (g/mile). Free, accurate tool for vehicle emissions, fuel efficiency, and logistics.
Convert Your Emissions Metric
Enter the grams per kilometer (g/km) value below to instantly see the equivalent grams per mile (g/mile), helping you compare vehicle efficiency across different measurement systems.
Unit Converter
Enter your g/km value for instant conversion
Typical car emissions range from 90 to 200 g/km
Converted Value
Based on standard imperial-to-metric conversion
Common g/km to g/mile Reference Chart
Quickly look up common vehicle emission values converted from the European standard (g/km) to the imperial equivalent (g/mile).
| Grams per Km (g/km) | Grams per Mile (g/mile) | Efficiency Context |
|---|---|---|
| 50 g/km | 80.47 g/mile | Highly efficient / Plug-in Hybrid |
| 90 g/km | 144.84 g/mile | Very efficient modern petrol/diesel |
| 100 g/km | 160.93 g/mile | Good efficiency (UK tax threshold) |
| 120 g/km | 193.12 g/mile | Average modern family car |
| 150 g/km | 241.40 g/mile | Larger petrol vehicle / older model |
| 200 g/km | 321.87 g/mile | Performance vehicle / large SUV |
Emissions Conversion FAQ
Everything you need to know about converting vehicle emissions and understanding fuel efficiency metrics.
To convert grams per kilometer (g/km) to grams per mile (g/mile), multiply the g/km value by 1.60934. For example, 100 g/km multiplied by 1.60934 equals 160.93 g/mile.
Grams per kilometer (g/km) is the standard metric used in the UK and Europe to measure vehicle CO2 emissions and fuel efficiency. It indicates how many grams of carbon dioxide a vehicle emits for every kilometer it travels.
Understanding grams per mile is helpful for comparing vehicle efficiency in regions that use the imperial system (like the US), or for calculating the total carbon footprint of a specific journey measured in miles.
Yes, 100 g/km (equivalent to ~161 g/mile) is generally considered very efficient for a standard petrol or diesel car. Hybrid and fully electric vehicles will have significantly lower or zero tailpipe g/km emissions.