Cement Calculators
Calculate cement quantity and mix ratios for concrete, mortar, and plaster work.
Cement Ratio Calculator
Calculate cement bags required for a concrete mix from wet volume and mix ratio.
About Cement Estimation
Cement is priced and purchased by the bag, so accurate estimation directly affects material cost and site logistics. These calculators convert a target concrete or mortar volume, combined with a mix ratio (such as 1:2:4), into the exact number of cement bags, and the corresponding sand and aggregate volumes, needed to complete the pour.
Popular Questions
How do I calculate cement bags from a mix ratio? +
Divide the total dry volume of the mix by the sum of the ratio parts to get the cement volume, then convert that volume to bags using the standard bag volume (typically 0.035 m³ per 50 kg bag).
What is a 1:2:4 mix ratio? +
It means 1 part cement, 2 parts sand, and 4 parts coarse aggregate by volume — a common ratio for general-purpose structural concrete.