Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Civil
Manhole Volume Calculator
Calculates the volume of concrete required to construct a circular manhole wall given the outer diameter, inner diameter, and height. Use it when estimating materials for sewer, drainage, or utility access structures.
Fill in the required fields to see your result.
Civil
Excavation Volume Calculator
Calculate the volume of earth to be removed for a rectangular excavation — foundation pit, trench, or basement cut. Output is the in-situ (bank) volume in cubic metres, used for haulage planning, disposal cost estimation, and equipment sizing.
Fill in the required fields to see your result.
Key differences
| Manhole Volume Calculator | Excavation Volume Calculator | |
|---|---|---|
| Category | Civil | Civil |
| Inputs required | 3 | 3 |
| Result | Concrete Volume (m³) | Excavation Volume (m³) |
| What it does | Calculates the volume of concrete required to construct a circular manhole wall given the outer diameter, inner diameter, and height. Use it when estimating materials for sewer, drainage, or utility access structures. | Calculate the volume of earth to be removed for a rectangular excavation — foundation pit, trench, or basement cut. Output is the in-situ (bank) volume in cubic metres, used for haulage planning, disposal cost estimation, and equipment sizing. |