Fuel efficiency (mass) is the ratio of distance traveled to the mass of fuel consumed, typically measured in kilometers per kilogram (km/kg).
1 km/kg = 0.01 L/100km 
1 L/100km = 100 km/kg 
उदाहरण: 
कन्वर्ट 15 Kilometers per Kilogram से Liters per 100 Kilometers:
15 km/kg = 0.15 L/100km 
| Kilometers per Kilogram | Liters per 100 Kilometers | 
|---|---|
| 0.01 km/kg | 0 L/100km | 
| 0.1 km/kg | 0.001 L/100km | 
| 1 km/kg | 0.01 L/100km | 
| 2 km/kg | 0.02 L/100km | 
| 3 km/kg | 0.03 L/100km | 
| 5 km/kg | 0.05 L/100km | 
| 10 km/kg | 0.1 L/100km | 
| 20 km/kg | 0.2 L/100km | 
| 30 km/kg | 0.3 L/100km | 
| 40 km/kg | 0.4 L/100km | 
| 50 km/kg | 0.5 L/100km | 
| 60 km/kg | 0.6 L/100km | 
| 70 km/kg | 0.7 L/100km | 
| 80 km/kg | 0.8 L/100km | 
| 90 km/kg | 0.9 L/100km | 
| 100 km/kg | 1 L/100km | 
| 250 km/kg | 2.5 L/100km | 
| 500 km/kg | 5 L/100km | 
| 750 km/kg | 7.5 L/100km | 
| 1000 km/kg | 10 L/100km | 
| 10000 km/kg | 100 L/100km | 
| 100000 km/kg | 1,000 L/100km |