Cubic Meter Calculator · Volume & Unit Converter

Cubic Meter Calculator

Calculate cubic meters from dimensions and convert to any volume unit

Setup
Choose the shape and the unit your dimensions are in — the calculator converts everything to cubic meters and many other volume units.
Dimensions
m
m
m
Box volume = Length × Width × Height
Volume Result
📦 Small volume
Volume
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—
Cubic meters — Liters —
Cubic meters
—
Cubic centimeters
—
Cubic feet
—
Cubic yards
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Liters
—
Gallons (US)
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Gallons (Imperial)
—
Cubic inches
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Full breakdown — the volume in every unit
UnitValueUnitValue
Your volume in common containers
ContainerVolume (m³)How many fitPercentage
All conversions use exact definitions: 1 m³ = 1,000 L = 1,000,000 cm³ = 35.3147 ft³ = 1.30795 yd³ = 264.172 US gal.
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Faiq Ur Rahman

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Cubic meters are the standard volume unit outside the United States. A shipping container holds about 33 cubic meters. A cubic meter of water weighs one tonne. This calculator takes dimensions in meters, centimeters, millimeters, feet, inches, or yards, and returns volume in m³ plus a full table of other units. Seven shapes are supported: box, cylinder, sphere, cone, capsule, pyramid, and tube. The container table below the result shows how your volume compares to a shipping container, a bathtub, a refrigerator, or an IBC tote.

 

How to Use the Cubic Meter Calculator

  1. Pick a shape from the dropdown. Box, cylinder, sphere, cone, capsule, pyramid, or tube.

  2. Choose the dimension unit. Meters, centimeters, millimeters, feet, inches, or yards.

  3. Enter the dimensions the tool asks for. Boxes use length, width, and height. Cylinders use diameter and height.

  4. Read the volume in cubic meters in the hero panel.

  5. Check the breakdown table for the same volume in liters, cubic feet, and gallons.

  6. Scroll to the container table to see how many bathtubs or shipping containers your volume fills.

 

How the Cubic Meter Calculator Formula Works

Each shape has its own volume formula. Every dimension converts to meters first.

Formula: Box volume = Length × Width × Height
Formula: Pyramid volume = (1/3) × Length × Width × Height
Formula: Cylinder volume = π × (Diameter ÷ 2)² × Height
Formula: Cone volume = (1/3) × π × (Diameter ÷ 2)² × Height
Formula: Sphere volume = (4/3) × π × (Diameter ÷ 2)³
Formula: Capsule volume = π r² L + (4/3) π r³
Formula: Tube volume = π × (Diameter ÷ 2)² × Length

Dimension units convert to meters using exact factors. One centimeter is 0.01 meter. One millimeter is 0.001 meter. One foot is 0.3048 meter. One inch is 0.0254 meter. One yard is 0.9144 meter.

Volume units convert from cubic meters using exact definitions. One cubic meter equals 1,000 liters, 1,000,000 cubic centimeters, 35.3147 cubic feet, 1.30795 cubic yards, 264.172 US gallons, 219.969 Imperial gallons, and 0.3531 CCF.

Validation blocks negative dimensions and zero volume. If any dimension is missing or negative, the result shows an error.

 

Worked Example

A concrete slab measures 5 meters long, 4 meters wide, and 0.1 meters thick.

Volume: 5 × 4 × 0.1 = 2.0 m³

Now convert to other units:
Liters: 2.0 × 1,000 = 2,000 L
Cubic centimeters: 2.0 × 1,000,000 = 2,000,000 cm³
Cubic feet: 2.0 × 35.3146667215 = 70.63 ft³
Cubic yards: 2.0 × 1.30795061931 = 2.616 yd³
US gallons: 2.0 × 264.172052358 = 528.34 gal
Cubic inches: 2.0 × 61,023.7440947 = 122,047.5 in³

The badge reads “Medium volume” because 2 cubic meters sits between 0.5 and 10. The container table shows the slab fills about 5.9 bathtubs, or 6% of a 20-foot shipping container.

What Is a Cubic Meter?

A cubic meter measures volume in three dimensions. Picture a cube one meter long, one meter wide, and one meter tall. That cube holds exactly one cubic meter. The unit is the SI standard for volume and appears in shipping, construction, water billing, and concrete ordering. One cubic meter equals 1,000 liters, or about 264 US gallons. A cubic meter of water weighs exactly 1,000 kilograms (one tonne) at 4°C.

 

How Do You Calculate Cubic Meters?

Multiply length by width by height. All three dimensions must be in meters. A box 2 m by 1.5 m by 1 m has 3 cubic meters of volume. If your dimensions are in centimeters, divide each by 100 first. A 200 cm by 150 cm by 100 cm box becomes 2 m by 1.5 m by 1 m, giving 3 cubic meters. The calculator handles the conversion for you.

 

How Many Liters Are in a Cubic Meter?

One cubic meter holds exactly 1,000 liters. That’s a fixed definition, not an approximation. A 2 m³ volume holds 2,000 liters. A 0.5 m³ volume holds 500 liters. This conversion is exact, which makes liters the preferred unit for water tanks, fuel, and liquids measured by volume.

 

How Do You Convert Cubic Meters to Cubic Feet?

Multiply cubic meters by 35.3146667215. A 3 m³ volume equals 105.94 cubic feet. A 33 m³ shipping container is about 1,165 cubic feet. The conversion appears in the breakdown table along with cubic yards and cubic inches.

 

How Do You Calculate Cylinder Volume in Cubic Meters?

Square the radius, multiply by pi, then multiply by height. Radius is half the diameter. A cylinder 1 meter across and 2 meters tall has a radius of 0.5 meters. Volume = 3.14159 × 0.5² × 2 = 1.57 cubic meters. Convert the diameter to meters before you start if your measurement is in centimeters or feet.

 

What Is the Volume of a Sphere in Cubic Meters?

Use the formula (4/3) × π × r³. A sphere 1 meter in diameter has a radius of 0.5 meters. Volume = 1.3333 × 3.14159 × 0.125 = 0.524 cubic meters. Spheres appear in tanks, domes, and some industrial storage containers.

 

How Many Cubic Meters in a Shipping Container?

A standard 20-foot shipping container holds about 33.1 cubic meters. A 40-foot container holds about 67.7 cubic meters. These figures come from internal dimensions after subtracting wall thickness. The container table below the result shows how much of a standard container your volume fills.

 

What Is the Difference Between Cubic Meters and Cubic Yards?

One cubic yard equals 0.7646 cubic meters. To convert cubic meters to cubic yards, multiply by 1.30795. A 10 m³ volume equals 13.08 cubic yards. Concrete and mulch often sell by the cubic yard in the US and by the cubic meter in Europe, so knowing both figures avoids ordering mistakes.

 

Why Does Shape Matter for Cubic Meters?

A box that’s 2 m × 2 m × 2 m holds 8 cubic meters. A cylinder 2 m across and 2 m tall holds only 6.28 cubic meters because the corners are missing. A cone with the same dimensions holds 2.09 cubic meters. Shape changes how much space a container actually holds. Pick the right formula for the object you’re measuring.

Disclaimer

This calculator provides volume estimates based on the dimensions you enter. Real-world volume can differ if measurements are rounded, if the container is not a perfect shape, or if material settles or compacts. Density values vary by moisture content and supplier. Use the results as a planning guide, not as a guaranteed order quantity. For structural, engineering, or shipping decisions, verify with a professional or the carrier’s own calculator.

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