Convert Metric Cup to Liter
Convert metric cups to liters instantly. 1 metric cup = 0.25 liter — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Liter to Metric Cup converter for the reverse conversion.
Units explained
Metric Cup
A metric cup is exactly 250 milliliters.
Adopted with metrication in Australia, New Zealand and other countries.
Standard cooking cup in metric-recipe countries.
Metrication, 20th c.
Liter
The liter is a metric unit of volume equal to one cubic decimeter (0.001 m³). It is the everyday metric volume unit.
Introduced in France in 1795; redefined in 1964 as exactly one cubic decimeter.
The world's common unit for beverages, fuel, and household liquids.
France, 1795; CGPM 1964.
Metric Cup to Liter conversion formula
The relationship between metric cups and liters:
To convert metric cups to liters, multiply the value in metric cups by 0.25. To reverse, multiply liters by 4.
How to use this converter
Type a value into the calculator. The result in liters updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Liter to Metric Cup converter for the reverse direction.
Step-by-step: convert metric cups to liters
- Write down the value in metric cups (cup).
- Multiply that value by the factor 0.25.
- The product is the equivalent value in liters (L).
- To reverse, multiply the liter value by 4.
Worked examples
Example 1 — Convert 1 cup to L:
1 × 0.25 = 0.25 L
Example 2 — Convert 100 cup to L:
100 × 0.25 = 25 L
Real-world example — Plastic film and laminate thickness
A 500-metric cup sheet is a typical spec for ID-card laminates and film overlays. Converting to liters aligns the value with the unit most CAD systems and material datasheets prefer.
500 cup × 0.25 = 125 L
Real-world example — Packaging gauge
A 4-metric cup plastic bag thickness is a common spec for grocery and freezer bags. Converting from metric cups to liters is what packaging buyers do whenever they bridge US and metric supplier quotes.
4 cup × 0.25 = 1 L
Metric Cup to Liter conversion table
Standard reference values for converting metric cups to liters:
| Metric Cup [cup] | Liter [L] |
|---|---|
| 0.01 | 0.0025 |
| 0.1 | 0.025 |
| 1 | 0.25 |
| 2 | 0.5 |
| 3 | 0.75 |
| 4 | 1 |
| 5 | 1.25 |
| 10 | 2.5 |
| 20 | 5 |
| 30 | 7.5 |
| 40 | 10 |
| 50 | 12.5 |
| 100 | 25 |
| 500 | 125 |
| 1000 | 250 |
Frequently asked questions
How many liters is 1 metric cup?
How do I convert metric cups to liters?
How do I convert liters back to metric cups?
How many liters is 100 metric cups?
Popular volume unit conversions
Convert Metric Cup to other volume units
Show all Metric Cup conversions
Metric / SI (8 units)
US Customary (Liquid) (8 units)
Imperial (UK) (4 units)
Cubic (length-derived) (3 units)
Cooking / Culinary (2 units)
Sources & references
Conversion factor (1 cup = 0.25 L) 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 Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.