Cubic Inches to Liters Converter

Convert between cubic inches (in³) and liters (L) with precision and speed

Cubic Inches

in³

Liters

Quick Conversions

Conversion Formula

1 cubic inch = 0.016387064 liters

1 liter = 61.0237440947 cubic inches

To convert cubic inches to liters, multiply the cubic inch value by 0.016387064. To convert liters to cubic inches, multiply the liter value by 61.0237440947.

Conversion Steps

Example 1: Convert 350 cubic inches to liters

Step 1: Start with the value in cubic inches: 350 in³

Step 2: Multiply by the conversion factor: 350 × 0.016387064

Step 3: Calculate the result: 5.7354724 L

Result: 350 in³ = 5.74 L

Example 2: Convert 2.5 liters to cubic inches

Step 1: Start with the value in liters: 2.5 L

Step 2: Multiply by the conversion factor: 2.5 × 61.0237440947

Step 3: Calculate the result: 152.559 in³

Result: 2.5 L = 152.56 in³

Example 3: Convert 454 cubic inches to liters (typical V8 engine)

Step 1: Start with 454 in³

Step 2: Apply formula: 454 × 0.016387064

Step 3: Result: 7.4397 L

Result: A 454 cubic inch engine equals approximately 7.44 liters

Conversion Reference Table

Cubic Inches (in³)	Liters (L)
0.01	0.00016387
0.1	0.00163871
1	0.01638706
5	0.08193532
10	0.16387064
25	0.4096766
50	0.8193532
100	1.6387064
150	2.4580596
200	3.2774128
250	4.096766
300	4.9161192
350	5.7354724
400	6.5548256
500	8.193532
1000	16.387064

Popular Engine Displacement Conversions

Engine displacement is commonly measured in cubic inches in the United States and liters internationally. Here are some popular automotive engine sizes:

Cubic Inches	Liters	Common Description
97 in³	1.6 L	Compact car engine
122 in³	2.0 L	Small sedan engine
151 in³	2.5 L	Mid-size car engine
181 in³	3.0 L	V6 engine
214 in³	3.5 L	Large V6 engine
305 in³	5.0 L	Classic V8 engine
350 in³	5.7 L	Small block V8
427 in³	7.0 L	Big block V8
454 in³	7.4 L	Large displacement V8

About Cubic Inches

The cubic inch (symbol: in³) is a unit of volume measurement in the Imperial and United States customary systems. It represents the volume of a cube measuring 1 inch on each side. One cubic inch equals 16.387064 cubic centimeters or milliliters.

Common Applications

Cubic inches are primarily used in:

Automotive Industry: Engine displacement in American vehicles (e.g., 350 cubic inch engine)
Aviation: Aircraft engine specifications and measurements
Manufacturing: Volume specifications for parts and components
Shipping: Package volume calculations in the United States

About Liters

The liter (symbol: L) is a metric unit of volume accepted for use with the International System of Units (SI). One liter equals 1 cubic decimeter (dm³), 1,000 cubic centimeters (cm³), or 0.001 cubic meters (m³).

Liters are widely used globally for:

Automotive: Engine displacement in most countries (e.g., 5.7L V8)
Beverages: Liquid volume measurements for drinks
Fuel Economy: Measuring fuel consumption and efficiency
Chemistry: Laboratory measurements and solutions

Related Volume Conversions

Frequently Asked Questions

How do you convert cubic inches to liters?

To convert cubic inches to liters, multiply the number of cubic inches by 0.016387064. For example, 100 cubic inches equals 100 × 0.016387064 = 1.6387 liters. This conversion factor is derived from the relationship between inches and centimeters, where 1 inch equals 2.54 centimeters.

What is the formula for cubic inches to liters?

The formula is: Liters = Cubic Inches × 0.016387064. Conversely, to convert liters to cubic inches, use: Cubic Inches = Liters × 61.0237440947. These conversion factors are based on the precise definition of an inch as exactly 2.54 centimeters.

Why are engine sizes given in both cubic inches and liters?

Engine displacement is measured in cubic inches in the United States, while most other countries use liters (metric system). Many manufacturers provide both measurements to accommodate different markets. For example, a “350” engine (350 cubic inches) is also known as a 5.7-liter engine.

How many liters is a 454 cubic inch engine?

A 454 cubic inch engine equals approximately 7.44 liters. This is calculated by multiplying 454 by 0.016387064. The 454 was a popular big-block V8 engine used in performance vehicles and trucks.

Is 1 cubic inch exactly equal to 16.387064 milliliters?

Yes, 1 cubic inch equals exactly 16.387064 milliliters (or cubic centimeters). Since 1 liter equals 1000 milliliters, 1 cubic inch equals 0.016387064 liters. This precise conversion is based on the international inch definition of exactly 2.54 centimeters.

How do you calculate engine displacement from bore and stroke?

Engine displacement in cubic inches can be calculated using the formula: Displacement = π/4 × bore² × stroke × number of cylinders. Once you have the displacement in cubic inches, multiply by 0.016387064 to convert to liters. For example, a V8 with 4-inch bore and 3.48-inch stroke has a displacement of approximately 350 cubic inches or 5.7 liters.

Which measurement is more accurate: cubic inches or liters?

Both measurements can be equally accurate when properly calculated. The choice between cubic inches and liters is a matter of convention rather than precision. The metric system (liters) is used in most countries, while cubic inches remain common in the United States automotive industry. The conversion between them is exact and mathematically defined.

What is the difference between in³ and L for small volumes?

For small volumes, cubic inches provide finer granularity since 1 cubic inch equals only 0.0164 liters. This makes cubic inches more convenient for measuring small parts, components, or spaces where decimal liters would be less intuitive. However, milliliters (mL) are typically preferred for small metric volumes, where 1 in³ = 16.387 mL.