The petrol calculator below is programmed to convert **40 MPG to L/100KM**. The default value is set at **40 MPG**, but you can change this value if you want, just type the UK MPG value you need into the box and you’ll get the **L/100KM** conversion.

Want to convert MPG to L/100KM and vice-versa? Check out this MPG to L/100KM converter and make the conversion in no time!

### How to convert 40 MPG to L/100KM

**Here’s a step-by-step guide on how to convert 40 MPG to l/100km:**

**Find the conversion factor:**The conversion factor for converting UK MPG to l/100km is 282.481.**Divide the conversion factor by the MPG figure:**In this case, the MPG figure is 40. That means you’ll need to divide the conversion factor (282.481) by the MPG figure (40): (282.481 ÷ 40 = 7.06).**So, 40 MPG is approximately equal to 7.06 l/100km.**