Volume Calculator
By Sagar Kumar · Updated 23 October 2026
Find the volume — and surface area — of a cube, cuboid, cylinder, cone, sphere or hemisphere, with the answer in litres too.
| In litres | — |
| Total surface area | — |
| Curved surface area | — |
Volume and surface area formulas
| Shape | Volume | Total surface area |
|---|---|---|
| Cube | a³ | 6a² |
| Cuboid | l × b × h | 2(lb + bh + hl) |
| Cylinder | πr²h | 2πr(r + h) |
| Cone | ⅓πr²h | πr(r + l), l = √(r² + h²) |
| Sphere | ⁴⁄₃πr³ | 4πr² |
| Hemisphere | ⅔πr³ | 3πr² |
Example: a cylinder with r = 3 cm and h = 5 cm has volume ≈ 141.37 cm³ and total surface area ≈ 150.8 cm². A cone with the same r and h has one third of that volume, ≈ 47.12 cm³.
Units
1 cm³ = 1 ml · 1,000 cm³ = 1 litre · 1 m³ = 1,000 litres · 1 ft³ ≈ 28.32 litres.
हिंदी में समझें
बेलन का आयतन = πr²h, शंकु का आयतन = ⅓πr²h और गोले का आयतन = ⁴⁄₃πr³। 1000 घन सेमी = 1 लीटर। जैसे त्रिज्या 3 सेमी और ऊँचाई 5 सेमी के बेलन का आयतन लगभग 141.37 घन सेमी होगा।
Frequently asked questions
What is the volume of a cylinder?
V = πr²h. A cylinder with radius 3 cm and height 5 cm holds about 141.37 cm³, which is 141 ml.
What is the volume of a cone?
V = ⅓πr²h — exactly one third of a cylinder with the same base and height. For r = 3 cm, h = 5 cm it is about 47.12 cm³.
What is the volume of a sphere?
V = ⁴⁄₃πr³. A sphere of radius 3 cm has a volume of about 113.1 cm³.
How do I convert volume to litres?
1,000 cm³ = 1 litre and 1 m³ = 1,000 litres. 1 cm³ is the same as 1 ml.
How much water does a tank hold?
Measure the inside in metres, find the volume in m³ and multiply by 1,000 for litres. A cylindrical tank 1 m across (r = 0.5 m) and 1.5 m high holds about 1,178 litres.