Efficiency Calculator
Professional transportation tools for fuel costs, mileage tracking, speed calculations, and vehicle efficiency analysis.
Complete Transportation Calculator Suite
Professional automotive and vehicle calculation tools including fuel cost, mileage, horsepower, engine displacement, tire sizing, and comprehensive transportation analysis
Convert between different fuel efficiency units including MPG, L/100km, and KM/L
How to use: Convert between different fuel efficiency measurement standards used worldwide. Enter Value (efficiency number to convert). Select From Unit and To Unit: MPG (US) - miles per gallon US standard, MPG (Imperial) - UK gallon (20% larger), KM/L - kilometers per liter (metric), L/100km - liters per 100 kilometers (European - lower is better). Common conversions: 25 MPG (US) = 30 MPG (Imperial) = 10.6 KM/L = 9.4 L/100km. Note: L/100km is inverse - lower numbers mean better efficiency. US uses MPG (higher = better), Europe uses L/100km (lower = better). Essential for: comparing vehicles from different markets, understanding international fuel economy ratings, rental car specifications abroad, and global vehicle shopping. Convert manufacturer specs to your familiar units.