How many cubic inches are in one quart?

Exactly 57.75 cubic inches. This is a defined, exact value for the US liquid quart (1 qt = 57.75 in³).

Is this for US quarts or imperial quarts?

US liquid quarts. One US liquid quart = 57.75 in³. One imperial (UK) quart ≈ 69.355 in³, so they differ by about 20%.

How do I convert cubic inches back to quarts?

Divide the number of cubic inches by 57.75. For example, 115.5 in³ ÷ 57.75 = 2 qt.

Why is the factor 57.75 exactly?

The US liquid quart is defined as exactly 231 cubic inches per gallon ÷ 4 quarts per gallon = 57.75 in³. Both the gallon and the quart are legal definitions, so the factor is exact.

What is 10 quarts in cubic inches?

10 × 57.75 = 577.5 cubic inches.

Quarts to Cubic Inches Converter

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

Convert liquid volume between US quarts and cubic inches instantly, with a reference table for common values.

Convert

Quarts (qt)

Result

Cubic Inches (in³)

in³

Type in either field — the other updates instantly.

Reference Table

Quarts (qt)	Cubic Inches (in³)

1 US liquid quart = 57.75 in³ (exact).

Summary

Convert liquid volume between US quarts and cubic inches instantly, with a reference table for common values.

How it works

Enter a value in the Quarts field to convert to cubic inches.
Or enter a value in the Cubic Inches field to convert to quarts.
Results update in real time as you type.
Use the reference table below for common quart-to-cubic-inch values.
The exact conversion factor is 1 qt = 57.75 in³ (US liquid quart).

Use cases

Calculate container volumes for aquarium or terrarium projects.
Convert recipe volumes when working with custom molds.
Check paint or resin volumes against cubic-inch container specs.
Engineering and manufacturing tasks requiring mixed unit inputs.
Homework and academic unit-conversion problems.
Cross-checking measurement specs in product data sheets.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu