Concrete Volume Calculator.
Calculate concrete volume for slabs, pads and rectangular pours.
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Use this result as a planning estimate, then create controlled Zektrx records for tasks, templates, evidence, actions, pricing and delivery.
Instant Results
Concrete volume
0.66m3
Estimated concrete volume including waste.
Net volume
0.60m3
Calculated volume before waste.
Explanation
What this calculates
Depth is converted to metres, then multiplied by plan area with a waste allowance.
Formula
Volume = length x width x depth x (1 + waste %)
Inputs are validated on screen and converted where unit options are available.
Worked Example
Example result
A 6 m x 4 m slab at 150 mm deep with 10% waste needs about 3.96 m3.
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Templates
Document the result
Software
Turn it into a workflow
Learn before you act.
More related articles are planned for this section.
Calculator questions.
How much waste should I allow?
Many small pours use 5-10%, but site conditions, irregular excavations and delivery risk can change this.
Does this design the concrete mix?
No. It estimates volume only. Use project specifications for concrete grade and design.
Next Step
Make estimates part of the job record.
Zektrx connects calculators, templates, articles, evidence, actions, pricing and free trial routes so one-off estimates can become repeatable contractor workflows.