Cylindrical Tank Capacity
Base area times height in cm³, divided by 1,000, gives litres. Since a litre of water weighs a kilogram, the weight is the same number.
Your numbers
Litres
282.74L
Water weight
282.7kg
Volume
0.2827m³
Formula
Litres = π × (Diameter ÷ 2)² × Height ÷ 1000
Tanks are never filled to the brim — plan on about 90% of this figure.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| Diameter (cm)The longest line across a circle — twice the radius. | 60 | 0 and up |
| Height (cm)The perpendicular height from the base — not the slanted side. | 100 | 0 and up |
Step by step
Quick reference table
Results when only Diameter (cm) changes and everything else stays put.
| Diameter (cm) | Litres (L) | Water weight (kg) | Volume (m³) |
|---|---|---|---|
| 30 | 70.69 | 70.7 | 0.0707 |
| 45 | 159.04 | 159 | 0.159 |
| 60 | 282.74 | 282.7 | 0.2827 |
| 90 | 636.17 | 636.2 | 0.6362 |
| 120 | 1,130.97 | 1,131 | 1.131 |
What each result means
| Result | At default values |
|---|---|
| Litres (L)Capacity in litres; one litre is 1,000 cm³. | 282.74 |
| Water weight (kg)The weight of the water inside; a litre weighs a kilogram. | 282.7 |
| Volume (m³)The space a solid holds — length cubed. | 0.2827 |
Common mistakes
Tanks are never filled to the brim — plan on about 90% of this figure.
Glossary
- Diameter
- The longest line across a circle — twice the radius.
- Height
- The perpendicular height from the base — not the slanted side.
- Litres
- Capacity in litres; one litre is 1,000 cm³.
- Water weight
- The weight of the water inside; a litre weighs a kilogram.
- Volume
- The space a solid holds — length cubed.
Frequently asked questions
Q. How is Cylindrical Tank Capacity calculated?
Litres = π × (Diameter ÷ 2)² × Height ÷ 1000 — Base area times height in cm³, divided by 1,000, gives litres. Since a litre of water weighs a kilogram, the weight is the same number.
Q. Can you walk through an example?
With Diameter 60cm, Height 100cm, the answer is Litres 282.74L.
Q. What do I need to enter?
Enter Diameter, Height. The result recalculates as you type, and an empty box counts as zero.
Q. How much does the answer move if I change a number?
Changing only Diameter (cm) moves the answer to Diameter (cm) 30 → Litres (L) 70.69 and Diameter (cm) 120 → Litres (L) 1,130.97. The table below lays out five steps.
Q. How are the numbers rounded?
Money is shown to the nearest whole unit, percentages to one decimal place and everything else to two. What you see is rounded; the calculation itself carries the unrounded value forward.
Q. Anything to watch out for?
Tanks are never filled to the brim — plan on about 90% of this figure.
Related calculators
Keep your length units consistent across inputs — mixing centimetres and metres throws results far off.