Convert Cubic Inch to Cubic Decimeter
Convert cubic inches to cubic decimeters instantly. 1 cubic inch = 0.016387064 cubic decimeter — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Cubic Decimeter to Cubic Inch converter for the reverse conversion.
Units explained
Cubic Inch
A cubic inch is the volume of a cube one inch on a side (16.387 mL).
Derived by cubing the international inch (25.4 mm).
Used for engine displacement and small-part volumes.
1959 yard agreement.
Cubic Decimeter
A cubic decimeter is the volume of a cube one decimeter on a side, exactly equal to one liter (0.001 m³).
Derived from the decimeter; in 1964 the CGPM defined the liter as exactly one cubic decimeter.
Common in chemistry and engineering as an exact synonym for the liter.
CGPM, 1964.
Cubic Inch to Cubic Decimeter conversion formula
The relationship between cubic inches and cubic decimeters:
To convert cubic inches to cubic decimeters, multiply the value in cubic inches by 0.016387064. To reverse, multiply cubic decimeters by 61.0237440947.
How to use this converter
Type a value into the calculator. The result in cubic decimeters updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Cubic Decimeter to Cubic Inch converter for the reverse direction.
Step-by-step: convert cubic inches to cubic decimeters
- Write down the value in cubic inches (in³).
- Multiply that value by the factor 0.016387064.
- The product is the equivalent value in cubic decimeters (dm³).
- To reverse, multiply the cubic decimeter value by 61.0237440947.
Worked examples
Example 1 — Convert 1 in³ to dm³:
1 × 0.016387064 = 0.016387064 dm³
Example 2 — Convert 100 in³ to dm³:
100 × 0.016387064 = 1.6387064 dm³
Real-world example — Packaging gauge
A 4-cubic inch plastic bag thickness is a common spec for grocery and freezer bags. Converting from cubic inches to cubic decimeters is what packaging buyers do whenever they bridge US and metric supplier quotes.
4 in³ × 0.016387064 = 0.065548256 dm³
Real-world example — Plastic film and laminate thickness
A 500-cubic inch sheet is a typical spec for ID-card laminates and film overlays. Converting to cubic decimeters aligns the value with the unit most CAD systems and material datasheets prefer.
500 in³ × 0.016387064 = 8.193532 dm³
Cubic Inch to Cubic Decimeter conversion table
Standard reference values for converting cubic inches to cubic decimeters:
| Cubic Inch [in³] | Cubic Decimeter [dm³] |
|---|---|
| 0.01 | 0.0001638706 |
| 0.1 | 0.0016387064 |
| 1 | 0.016387064 |
| 2 | 0.032774128 |
| 3 | 0.049161192 |
| 4 | 0.065548256 |
| 5 | 0.08193532 |
| 10 | 0.16387064 |
| 20 | 0.32774128 |
| 30 | 0.49161192 |
| 40 | 0.65548256 |
| 50 | 0.8193532 |
| 100 | 1.6387064 |
| 500 | 8.193532 |
| 1000 | 16.387064 |
Frequently asked questions
How many cubic decimeters is 1 cubic inch?
How do I convert cubic inches to cubic decimeters?
How do I convert cubic decimeters back to cubic inches?
How many cubic decimeters is 100 cubic inches?
Popular volume unit conversions
Convert Cubic Inch to other volume units
Show all Cubic Inch conversions
Metric / SI (8 units)
US Customary (Liquid) (8 units)
Imperial (UK) (4 units)
Cubic (length-derived) (2 units)
Cooking / Culinary (3 units)
Sources & references
Conversion factor (1 in³ = 0.016387064 dm³) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.