Ratio Calculator

Why the Ratio Calculator matters

Getting your driveline ratios right has a big impact on how your Land Rover drives. Whether you're climbing steep tracks or cruising at speed, the right gearing keeps your engine in its comfort zone and avoids over-spinning, lugging or under-performing tyres.

What you'll need to enter

To get accurate results you'll need to input your storage vehicle data:

• Gearbox or transmission ratio
• Transfer box ratio
• Differential ratio
• Tyre diameter or size

These elements all combine to determine final drive speed and engine RPM.

Use the calculator to:

• See how changing tyre size will affect road speed and revs
• Compare different diff ratios to match engine power and drive type
• Make informed choices for restoration, highway use or off-road builds

Click here to launch the Ratio Calculator.

Not sure what your spec should be?

If you're unsure about any of the values or how your build is going to perform, our team is ready to help. Just reach out and we'll talk you through your best gearing options.