Knowledge Centre · Tool · Pile concrete calculator
Pile Concrete Calculator: Drilling and Concrete Volume
Enter the diameter, length and number of piles in this pile concrete calculator to see total drilling and theoretical concrete volume at once. The same page also covers micropile grout and jet grout column volume. The results are for early budgeting, and the design sets the final quantities.
Tool
Quantity and volume calculation
Methods
Bored, CFA, micropile, jet grout, DSM
Result
Theoretical geometric volume
Price
Only with your own unit rates
Prepared by
Abdullah Çetintaş, Geological Engineer
Updated
November 2026
Pile concrete calculator for bored and CFA piles
We use the same geometric calculation for bored piles and CFA piles. Enter the diameter in centimetres and the length in metres. You can also work out a rough budget with your own unit rates.
Optional: rough budget with your own unit rates
Rough budget: —
Theoretical geometric volume. Concrete use on site is usually slightly higher. Reinforcement, mobilisation and taxes are not included.
Micropile grout calculator
Micropiles use cement grout instead of concrete. For this reason, the result appears as grout volume. However, grout take rises clearly depending on the ground.
Optional: rough budget with your own unit rates
Rough budget: —
Theoretical geometric volume. Grout take on site is often clearly higher, depending on the ground. Steel, mobilisation and taxes are not included.
Jet grout and DSM column volume
For jet grout and DSM columns, the result is the geometric volume of treated soil. Cement use, on the other hand, depends on the soil and the mix design. For example, you need to deduct the overlap yourself for secant columns.
Optional: rough budget with your own unit rates
Rough budget: —
Geometric volume of the columns. Binder take depends on the soil and the mix design; overlaps between columns are not deducted.
How does the pile concrete calculator work?
The calculation is a simple cylinder volume: V = π × D² / 4 × L. Here D is the pile diameter and L is the pile length. Then we multiply the result by the number of piles.
| Pile diameter | Theoretical concrete per metre |
|---|---|
| Ø60 cm | 0.283 m³/m |
| Ø80 cm | 0.503 m³/m |
| Ø100 cm | 0.785 m³/m |
| Ø120 cm | 1.131 m³/m |
| Ø150 cm | 1.767 m³/m |
| Ø200 cm | 3.142 m³/m |
For example, 120 piles of Ø80 cm and 18 m length give 2,160 m of total drilling. The theoretical concrete volume then comes to about 1,086 m³.
What does the result leave out?
- Concrete use on site is usually slightly higher than the theoretical volume.
- Reinforcement, mobilisation and taxes are not included.
- Pile head trimming, excavation and testing are separate items.
- Temporary casing, rock drilling and site access change the price.
So the result does not replace a quote. Our bored pile cost guide explains the nine factors behind the price. For a firm figure, send your documents through the Request a Quote form.
Frequently asked questions about the pile concrete calculator
We have collected the questions we hear most often about this calculator. If yours is not here, however, call us or use the quote form.
Calculation and results
Why does a site use more concrete?
Because a borehole is not a perfect cylinder, and it widens in loose ground. In addition, we pour extra concrete at the pile head that we later trim.
Does the calculator give a price?
It only gives a rough budget from the unit rates you enter. We do not publish prices on the site, and we base our quotes on quantities.
What is the rock drilling field for?
It shows the length of pile in rock separately. That is because rock drilling has a different price from soil drilling.
Does the same calculation apply to CFA piles?
Yes, the geometric volume is the same. However, we usually do not use the rock drilling field for CFA piles.
Request a quote based on your quantities
Send us the site investigation, the pile schedule and the drawings. Then we can prepare a quote based on measured quantities.