How many liters does a cooking pot hold?
Estimate a cylindrical pot’s capacity in liters and milliliters from its inside diameter and height, with clear limits for rounded or tapered cookware.
Calculate with your own values
What the calculation represents
A straight-sided cooking pot with a flat base can be approximated as a cylinder. Measure across the inside and from the inside bottom to the rim; handles and wall thickness do not count.
- Reference formula
V = π × (D / 2)² × h- Unit reference
- 1 L = 1,000 cm³ · 1 m³ = 1,000 L · 1 US gal = 231 in³ = 3.785411784 L
A practical workflow
- Measure the full inside diameter, excluding handles and wall thickness.
- Measure inside height to the rim for geometric capacity.
- Measure water depth from the bottom for the current contents.
- Use one length unit and compare the results in liters and milliliters.
Worked example
An inside diameter of 20 cm and height of 12 cm give π × 10² × 12 ÷ 1000 = 3.769911 liters, or about 3770 mL to the rim.
Cylindrical pot capacity
Measure the inside diameter and height. To estimate capacity to the rim, use the same height for the pot and the liquid; for a partial fill, measure liquid depth from the inside bottom.
Reading the answer correctly
Rounded bases and tapered walls change the volume. For pressure cookers, follow the manufacturer’s markings and instructions; this estimate does not establish a safe fill limit.
Capacity to the rim is a geometric reference. Space for boiling, stirring or following a recipe depends on the use and the cookware instructions.
Checks before relying on the number
- Use inside measurements, not packaging dimensions.
- Keep water depth at or below the inside height.
- Diameter is twice the radius; enter the full diameter.
- Capacity to the rim is not a safe cooking fill level.
Sources and references
These references support the units, method, or limitations explained in this guide.
- NIST — SI Units: Volume
Definitions and exact relationships between liters and cubic units.
- OpenStax — Prealgebra 2e, §9.6
Ideal rectangular-solid, cylinder, sphere and cone formulas; not a certification of product capacity.
To check the estimate, add measured amounts of cold water with a graduated jug. Advertised capacity and a geometric calculation need not match.
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