Convert Cubic Inch to Quart (in³ → qt)
The cubic inch measures classic American engine displacement and small-volume manufacturing tolerances.
Cubic Inch to Quart Conversion Table
10 common values| Cubic Inch | Quart |
|---|---|
| 1 in³ | 0.017316 qt |
| 2 in³ | 0.034632 qt |
| 5 in³ | 0.08658 qt |
| 10 in³ | 0.17316 qt |
| 20 in³ | 0.34632 qt |
| 50 in³ | 0.865801 qt |
| 100 in³ | 1.731602 qt |
| 200 in³ | 3.463204 qt |
| 500 in³ | 8.658009 qt |
| 1,000 in³ | 17.316017 qt |
How to Convert Cubic Inch to Quart Manually
Step by StepConverting cubic inches to quarts is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.
- 1Take your value in cubic inchesStart with the number of cubic inches (in³) you want to convert.
- 2Multiply by 0.017316The conversion factor from in³ to qt is 0.017316. Multiply your value by this number.
- 3Read the result in quartsThe result is your value in quarts (qt).
Formula
Multiply the value in cubic inches by 0.017316. For the reverse direction, multiply by 57.75.
qt = in³ × 0.017316in³ = qt × 57.75Tips
Use these in everyday conversions- 1 in³ = 16.387 cm³ exactly.
- To convert cubic inches to litres, divide by 61.02.
- US automotive ads today quote both cu in and L for classic cars.
Common Mistakes
Avoid these- Confusing in³ with in² or linear inches.
- Using 16 instead of 16.387 on precision machining.
- Assuming modern European engines are marked in cu in — they are always in L or cc.
About Cubic Inch and Quart
What is the Cubic Inch?
The cubic inch equals exactly 16.387064 cubic centimeters and is the traditional American unit for engine displacement and small-volume manufacturing measurements. Classic American muscle cars were famously identified by their cubic-inch engine size: the Ford 'Boss 429' had a 429-cubic-inch (7.0-liter) V8, and the Chevrolet 'Big Block 454' was 7.4 liters. Modern American automakers have transitioned mostly to liter-based naming (e.g., 'Hemi 5.7'), but the cubic inch persists in vintage car culture and aviation engines. It is also used for printer-paper coverage and industrial tolerances. The cubic inch relates to the cubic foot (1,728 in³ = 1 ft³), the cubic centimeter (1 in³ ≈ 16.39 cm³), the milliliter (1 in³ ≈ 16.39 mL), and the US fluid ounce (1 fl oz ≈ 1.805 in³).
- Classic US car engine displacement
- Firearms chamber and cartridge specs
- Some US machining and mould design
350 cu in V8 = 5.7 L engine. 302 cu in Ford V8 = 4.9 L. Modern specs typically give litres.
What is the Quart?
The US quart equals exactly one quarter of a US gallon (0.946352946 liters) and is a common kitchen and motor-oil volume in the United States. The word 'quart' derives from the Latin 'quartus' meaning fourth. Milk and motor oil are commonly sold in quart containers (a quart of motor oil is 32 fl oz), and large recipes call for quart-sized stockpots. The US quart is distinct from the slightly larger UK imperial quart (1.137 L). It relates to the gallon (4 qt = 1 gal), the pint (2 pt = 1 qt), the cup (4 cups = 1 qt), the fluid ounce (32 fl oz = 1 qt), and the liter (1 US qt ≈ 0.946 L). The quart is a useful intermediate volume between the cup (small recipe measurements) and the gallon (bulk liquids).
- US cooking recipe quantities
- US motor-oil container sizes (1 quart bottles)
- Canning and preserving containers
A US quart of motor oil is 946 ml. A "quart of milk" in the US ≈ 1 L. UK "quart" is rare today.