Volume Converter

Liters to gallons and other fluid volumes

• 1 US gallon ≈ 3.785 L — the factor every oil and fuel capacity cross-check needs.
• European fill specs list liters; US jugs and manuals often use quarts and gallons.
• Cubic inches live on the same board when you also need displacement-style volume.

Oil capacity, fuel tank size, and coolant fills jump between liters and US gallons/quarts. This volume converter is aimed at those shop cross-checks — enter the manual figure and read the jug size you actually buy.

Use the board when a European service sheet lists liters next to a US quart bottle, or when you need milliliters for additive dosing.

For engine displacement marketing (5.7 L vs 350 ci), the dedicated displacement converter defaults to that pair — this page stays general fluid volume first.

How to convert automotive volumes

1. Enter the volume you have. Use the capacity from the owner’s manual, fill sticker, or jug label.
2. Choose liters, gallons, or quarts. Read the paired unit instantly, plus mL and ci on the board if needed.
3. Match the container you are buying. Convert the OEM fill to the unit printed on the bottle before you pour.

Volume converter FAQ