Cement, Sand & Crush Calculatorسیمنٹ ریت بجری کیلکولیٹر
Calculate how many cement bags and how much sand and crush you need for a slab, floor or plaster.لینٹر، فرش یا پلستر کے لیے سیمنٹ کی بوریاں، ریت اور بجری کی مقدار معلوم کریں۔
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About this tool
The dry-volume method multiplies the wet volume by about 1.54 for concrete (1.27 for mortar) to account for voids, then splits it by the mix ratio. One 50 kg bag of cement is about 1.25 cubic feet. Choose the mix your engineer specifies — e.g. 1:2:4 for general RCC or 1:4 for plaster.
How to use it
- Enter length, width and thickness.
- Choose the mix ratio.
- Read cement bags, sand and crush.
Example
Roof slab
20 × 15 ft, 5 inches thick, 1:2:4 → about 125 cft wet volume ≈ 22 bags cement, 55 cft sand, 110 cft crush.
Limitations
- Steel reinforcement and water are not included; follow your structural engineer’s design.
Frequently asked questions
How many cement bags per cubic foot?
Depends on mix; for 1:2:4 about 0.18 bags per cft of concrete.
What is crush?
Crushed stone aggregate (bajri) used in concrete.
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