Measurement & Geometry

Cylinder Volume Calculator

Measurement & Geometry

Cylinder Volume Calculator

Live answer2.2619 m³2,261.9 L · planning 2.375 m³, 2,375 L

Diameter (metres)Measure straight across the circular end. Leave radius as zero to use diameter.Radius override (metres)Optional. If entered above zero, this radius is used instead of diameter ÷ 2.Height / length (metres)Use the cylinder height for upright tanks or length for horizontal tubes.Allowance (percent)Optional planning allowance for headspace, waste, tolerance or ordering margin.

Live result2.2619 m³2,261.9 L · planning 2.375 m³, 2,375 L

Formula used

Cylinder volume = π × radius² × height. If diameter is entered, radius = diameter ÷ 2. Litres = cubic metres × 1,000. Optional planning volume = measured volume × (1 + allowance percent ÷ 100).

This is the method behind the answer, so the result can be checked rather than simply trusted.

Live math canvas

Your numbers, formula and explanation together

Cylinder Volume Calculator: 2.2619 m³. 2,261.9 L · planning 2.375 m³, 2,375 L

Formula applied

The exact method behind this answer

CalculationTime keeps the method visible so the number can be checked instead of blindly trusted.

Cylinder volume = π × radius² × height. If diameter is entered, radius = diameter ÷ 2. Litres = cubic metres × 1,000. Optional planning volume = measured volume × (1 + allowance percent ÷ 100).

Apply the formulaCylinder volume = π × radius² × height. If diameter is entered, radius = diameter ÷ 2. Litres = cubic metres × 1,000. Optional planning volume = measured volume × (1 + allowance percent ÷ 100).2.2619 m³2,261.9 L · planning 2.375 m³, 2,375 L

Your live breakdown

Current inputs in the calculation

These values come from the controls above and update when the calculator changes.

Diameter: 1.2 metres
Radius override: 0 metres
Height / length: 2 metres
Allowance: 5 percent

Resulting answer

2.2619 m³

2,261.9 L · planning 2.375 m³, 2,375 L

Answer: 2.2619 m³
Live support: 2,261.9 L · planning 2.375 m³, 2,375 L

Assumptions used

What this answer assumes

For tank capacity, use internal dimensions and keep headspace or safety margin visible in the printed notes.

The cylinder is treated as a straight circular cylinder with flat circular ends.
Radius and height must use the same length unit; the default inputs use metres.
The allowance is shown as planning volume only and is not part of the exact geometric cylinder.
Horizontal tanks, domed ends, sloped cylinders, wall thickness and partial fill levels need specialist tank geometry or manufacturer data.

Master’s Tip

How to use the result well

Master’s Tip: measure the internal diameter when you need capacity. External diameter is useful for clearance and fabrication, but wall thickness can make the real internal volume noticeably smaller.

Printable record

What belongs in the saved calculation

Save the inputs, result, formula, assumptions, page URL and date together so the calculation can be reviewed later.

Diameter: 1.2 metres
Radius override: 0 metres
Height / length: 2 metres
Allowance: 5 percent

Visual grid

This result measures part of the space you live in

Length, area, volume and material estimates are grid problems too: measure the space, account for edges and allowances, then turn the pattern into a number you can use.

Micro-timehours, minutes, shiftsHuman scaledays, weeks, projectsMacro-timemonths, years, calendars

Measured output2.2619 m³

Space calculations turn a real surface, room, run or volume into cells, edges and allowances that can be quoted, ordered or checked.

2.2619 m³2,261.9 L · planning 2.375 m³, 2,375 L

Inputs

Diameter: 1.2 metres
Radius override: 0 metres
Height / length: 2 metres
Allowance: 5 percent

Method

Diameter 1.2 m gives radius 0.6 m. Volume = π × 0.6² × 2 = 2.2619 m³. That is 2,261.9 litres. With a 5% allowance, the planning volume is 2.3749 m³, or about 2,374.9 litres.

Assumptions

The cylinder is treated as a straight circular cylinder with flat circular ends.
Radius and height must use the same length unit; the default inputs use metres.
The allowance is shown as planning volume only and is not part of the exact geometric cylinder.
Horizontal tanks, domed ends, sloped cylinders, wall thickness and partial fill levels need specialist tank geometry or manufacturer data.

Notes

Use this space on the printed report for client, supplier, classroom, job-location, measurement, quote or approval notes.