How many liters are in one cubic inch?

One cubic inch equals exactly 0.016387064 liters. This is the precise SI-defined conversion factor based on 1 inch = 2.54 cm exactly.

How do I convert cubic inches to liters manually?

Multiply the cubic inch value by 0.016387064. For example, 61 in³ × 0.016387064 ≈ 1.000 L (61 in³ is very close to 1 liter).

350 in³ × 0.016387064 ≈ 5.735 liters. A "350 small block" is therefore approximately a 5.7 L engine.

Yes. A cubic inch (in³) is the volume of a cube with 1-inch sides, exactly the same as "one inch cubed."

Liters are the metric unit for volume (1 L = 1 dm³), while cubic inches are the US customary unit. 1 liter ≈ 61.024 in³.

Name: Cubic Inches to Liters Converter
Availability: InStock
Author: Nham Vu

Enter a cubic inch value and get the exact liter equivalent with the full formula shown.

Cubic Inches (in³)

Liters (L)

Description	in³	Liters

Exact factor: 1 in³ = 0.016387064 L
Reverse: 1 L = 61.0237441 in³

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Enter a cubic inch value and get the exact liter equivalent with the full formula shown.

Convert engine displacement from cubic inches to liters (e.g., 350 in³ ≈ 5.7 L).
Calculate the volume of a shipping box or container.
Convert aquarium or tank capacity between unit systems.
Check product packaging volume listed in cubic inches against liter specs.
Engineering calculations for fluid systems using US customary measurements.

Last updated: 2026-06-09 · Reviewed by Nham Vu