Cubic Inches ⇄ Litres

Precise volume conversion for automotive, engineering, and scientific applications

What is a Cubic Inches to Litres Converter?

A cubic inches to litres converter is a specialized volume conversion tool that accurately transforms measurements between the imperial cubic inch (in³) and the metric litre (L). This conversion is essential in automotive engineering for engine displacement calculations, scientific research requiring precise volume measurements, and international trade where different measurement systems are used. The converter uses the exact conversion factor: 1 cubic inch = 0.0163871 litres.

Our precision converter handles both directions of conversion with high accuracy, supporting decimal inputs and providing results to multiple decimal places. It's particularly valuable for automotive professionals working with engine specifications, engineers designing fluid systems, laboratory technicians measuring volumes, and students learning metric conversions. The tool includes common conversion examples and practical applications.

This converter is indispensable for automotive technicians calculating engine displacement, mechanical engineers designing hydraulic systems, chemists working with solution volumes, manufacturers converting product specifications, and anyone needing accurate volume conversions between imperial and metric systems. Precise conversions ensure proper specifications, correct measurements, and successful international collaboration.

Input Volume

Cubic inches or litres

Precise Conversion

Mathematical accuracy

Converted Result

Accurate volume output

Volume Converter

Cubic Inches (in³)
Imperial volume unit
Litres (L)
0.000
Metric volume unit

Quick Conversions

1 L = 61.024 in³
One litre in cubic inches
100 in³ = 1.639 L
Common engine size
350 in³ = 5.735 L
Classic V8 engine
1000 in³ = 16.387 L
Large displacement
2 L = 122.05 in³
Small engine size
5 L = 305.12 in³
Mid-size engine

Common Applications

Automotive Engineering
Engine displacement calculations, cylinder volume measurements, and automotive specifications conversion between imperial and metric systems.
Mechanical Engineering
Hydraulic system design, pump capacity calculations, and fluid volume specifications for international projects.
Laboratory Science
Chemical solution preparation, laboratory equipment calibration, and scientific research requiring precise volume measurements.

Conversion Formulas & Standards

Conversion Formulas

Cubic Inches to Litres:
L = in³ × 0.0163871

Multiply cubic inches by 0.0163871 to get litres. Exact conversion factor based on international standards.

Litres to Cubic Inches:
in³ = L × 61.0237

Multiply litres by 61.0237 to get cubic inches. Reciprocal of the primary conversion factor.

Exact Relationship:
1 in³ = 16.387064 cm³ = 0.016387064 L

Based on the definition: 1 inch = 2.54 cm exactly, therefore 1 in³ = (2.54)³ cm³.

Automotive Applications

Engine Displacement:
Displacement = Bore² × Stroke × Cylinders × π/4

Calculate total engine displacement, then convert between cubic inches and litres as needed.

Common Engine Sizes:
350 in³ = 5.7 L
454 in³ = 7.4 L

Popular V8 engine displacements in both measurement systems.

International Standards

International System of Units (SI)

Official definition of the litre and its relationship to cubic meters and cubic centimeters.

BIPM SI Brochure
National Institute of Standards and Technology

US standards for unit conversions and measurement precision in engineering applications.

NIST Measurements
Society of Automotive Engineers (SAE)

Automotive industry standards for engine displacement and volume measurements.

SAE Standards

Conversion Methodology

Precision:

Calculations use the exact conversion factor 1 in³ = 16.387064 cm³ = 0.016387064 L for maximum accuracy.

Rounding:

Results displayed to appropriate decimal places based on input precision and practical application needs.

Applications:

Used in automotive engineering, mechanical design, laboratory science, and international trade.

Quality Control:

Conversion accuracy verified against multiple international standards and reference sources.