CFT Sand Aggregate Calculation India Construction Guide
How to order the right quantity of sand and aggregate in CFT for concrete work in India. Includes M15, M20, M25 mix ratios and CFT-to-cubic meter conversion.
Ordering construction materials in India requires navigating a persistent unit mismatch: engineers design in cubic meters (m³) while sand and aggregate vendors quote in CFT (cubic feet). 1 cubic meter = 35.3147 CFT. This conversion is non-negotiable for any construction project.
CFT Requirements for Common Mix Ratios
For M20 concrete (1:1.5:3 mix, the most common for residential slabs): per 1 m³ of concrete: Cement = 8 bags (50kg each). Sand = 0.42 m³ = 14.83 CFT. Aggregate = 0.84 m³ = 29.66 CFT.
Use our cft cubic feet calculator india to calculate volume from room dimensions. Use our cubic meter to cft calculator india for the unit conversion. Our cement bags calculator india and sand aggregate calculator india calculate exact quantities for your project volume and mix ratio.