Convert Cubic millimetres to Liters
1 cubic millimetre is 0.000001 L. One cubic millimetre is exactly 0.000001 liters.
One cubic millimetre is 1.0000 × 10^-6 liters. To convert cubic millimetres to liters, multiply by 1.0000 × 10^-6; to go the other way, divide by 1.0000 × 10^-6 or multiply by 1000000. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Handbook 130. A millionth of a litre, because the millimetre is a thousandth of a metre and volume cubes the factor.
Factor checked against the defining standard · How we check
- Cubic millimetres × 1.0000 × 10^-6
1 * 0.0000010 L
1 cubic millimetre in every volume unit
| Unit | Value | Exact factor |
|---|---|---|
| US teaspoons | 0.0002028841362 tsp | × 0.000202884136211 |
| US tablespoons | 0.0000676280454 tbsp | × 0.0000676280454037 |
| US fluid ounces | 0.0000338140227 fl oz | × 0.0000338140227018 |
| US cups | 0.000004226752838 cup | × 0.00000422675283773 |
| US pints | 0.000002113376419 pt | × 0.00000211337641887 |
| US quarts | 0.000001056688209 qt | × 0.00000105668820943 |
| US gallons | 0.0000002641720524 gal | × 0.000000264172052358 |
| milliliters | 0.001 ml | × 0.001 |
| liters | 0.000001 L | × 0.000001 |
| imperial gallons | 0.0000002199692483 gal (UK) | × 0.000000219969248299 |
| imperial quarts | 0.0000008798769932 qt (UK) | × 0.000000879876993196 |
| imperial pints | 0.000001759753986 pt (UK) | × 0.00000175975398639 |
| imperial fluid ounces | 0.00003519507973 fl oz (UK) | × 0.0000351950797279 |
| imperial gills | 0.000007039015946 gi (UK) | × 0.00000703901594557 |
| cubic millimetres (as entered) | 1 mm³ | — |
| cubic centimetres | 0.001 cm³ | × 0.001 |
| cubic inches | 0.00006102374409 in³ | × 0.0000610237440947 |
| cubic feet | 0.00000003531466672 ft³ | × 0.0000000353146667215 |
| cubic yards | 0.000000001307950619 yd³ | × 0.00000000130795061931 |
| cubic metres | 0.000000001 m³ | × 0.000000001 |
Factors are entered by hand from NIST Handbook 130 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
The same converter answers this pair however it is written: cubic millimetres to litres is the British spelling of the same units — the metre and the litre are spelled that way outside the United States and the quantity does not change.
How do you convert cubic millimetres to liters? The converter and the working
- 1.Take the measurement in cubic millimetres.
- 2.Multiply by 1.0000 × 10^-6 — that is how many liters fit in one cubic millimetre.
- 3.To go back the other way, divide by 1.0000 × 10^-6, or multiply by 1000000.
Worked example: 25 cubic millimetres to liters
- Formula
- mm³ × 1.0000 × 10^-6 = L
- Arithmetic
- 25 × 1.0000 × 10^-6 = 0.000025 L
- Answer
- 25 mm³ = 0.000025 L
The factor is rounded for display; the figure above is computed from the full value.
Cubic millimetres to liters conversion table
| Cubic millimetres | Liters |
|---|---|
| 1 mm³ | 0.000001 L |
| 2 mm³ | 0.000002 L |
| 3 mm³ | 0.000003 L |
| 4 mm³ | 0.000004 L |
| 5 mm³ | 0.000005 L |
| 6 mm³ | 0.000006 L |
| 7 mm³ | 0.000007 L |
| 8 mm³ | 0.000008 L |
| 9 mm³ | 0.000009 L |
| 10 mm³ | 0.00001 L |
| 12 mm³ | 0.000012 L |
| 15 mm³ | 0.000015 L |
| 20 mm³ | 0.00002 L |
| 25 mm³ | 0.000025 L |
| 50 mm³ | 0.00005 L |
| 100 mm³ | 0.0001 L |
| 200 mm³ | 0.0002 L |
| 300 mm³ | 0.0003 L |
| 500 mm³ | 0.0005 L |
| 1000 mm³ | 0.001 L |
| 2000 mm³ | 0.002 L |
| 5000 mm³ | 0.01 L |
| 10000 mm³ | 0.01 L |
What is a cubic millimetre?
A millionth of a litre, because the millimetre is a thousandth of a metre and volume cubes the factor. A microlitre by another name, and the unit injection-moulding shot sizes are quoted in.
What is a liter?
One cubic decimeter. A liter of water weighs almost exactly one kilogram, which is how the unit was designed.
How many liters are in a cubic millimetre?
One cubic millimetre is 1.0000 × 10^-6 liters. Going the other way, one liter is 1000000 cubic millimetres. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every volume unit here
The whole group — 20 units with their symbols and the size of each one in liters — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a cubic millimetre.
Cite this page
- APA
- Rule Calculator. (2026). Convert Cubic millimetres to liters. Rule Calculator. https://rulecalculators.com/convert/cubic-millimeter-to-liter
- MLA
- "Convert Cubic millimetres to liters." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/cubic-millimeter-to-liter.
- Chicago
- Rule Calculator. "Convert Cubic millimetres to liters." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/cubic-millimeter-to-liter.
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Questions people actually ask
- How many liters are in a cubic millimetre?
- 1.0000 × 10^-6. One cubic decimeter. A liter of water weighs almost exactly one kilogram, which is how the unit was designed.
- How do I convert liters back to cubic millimetres?
- Divide by 1.0000 × 10^-6, or multiply by 1000000 — they are the same operation.
Other volume conversions
Liters to cubic millimetres — the same conversion the other way.