How To Calculate Cement, Sand, & Aggregate Quantity In 1 Cubic metre Concrete
Point Should Be Know Before Estimating
Density of Cement = 1440 kg/m3
Sand Density = 14501500 kg/m3
Density of Aggregate = 14501550 kg/m3
How many KG in 1 bag of cement = 50 kg
Cement quantity in litres in 1 bag of cement = 34.7 litres
1 Bag of cement in cubic metres = 0.0347 cubic meter
How many CFT (Cubic Feet) = 1.226 CFT
Numbers of Bags in 1 cubic metre cement = 28.8 Bags
Specific gravity of cement = 3.15
Grade of cement = 33, 43, 53
Where 33, 43, 53 compressive strength of cement in N/mm2
M20 = 1 : 1.5 : 3 = 5.5, (Cement : Sand : Aggregate)
Some of Mix is – 5.5
Where, M = Mix
20 = Characteristic Compressive strength
Consider volume of concrete = 1m3
Dry Volume of Concrete = 1 x 1.54 = 1.54 m3 (For Dry Volume Multiply By 1.54)
Now we start calculation for find Cement, Sand and Aggregate quality in 1 cubic meter concrete

CALCULATION FOR CEMENT QUANTITY
Cement= (1/5.5) x 1.54 = 0.28 m^{3 }∴ 1 is a part of cement, 5.5 is sum of ratio
Density of Cement is 1440/m^{3}
= 0.28 x 1440 = 403.2 kg
We know each bag of cement is 50 kg
For Numbers of Bags = 403.2/50 = 8 Bags
We Know in one bag of cement = 1.226 CFT
For Calculate in CFT (Cubic Feet) = 8 x 1.225 = 9.8 Cubic Feet

CALCULATION FOR SAND QUANTITY
Consider volume of concrete = 1m^{3 }
Dry Volume of Concrete = 1 x 1.54 = 1.54 m^{3}
Sand= (1.5/5.5) x 1.54 = 0.42 m^{3 }∴ 1.5 is a part of Sand, 5.5 is sum of ratio
Density of Sand is 1450/m^{3}
For KG = 0.42 x 1450 = 609 kg
As we know that 1m^{3} = 35.31 CFT
For Calculation in Cubic Feet = 0.42 x 35.31 = 14.83 Cubic Feet

CALCULATION FOR AGGREGATE QUANTITY
Consider volume of concrete = 1m^{3 }
Dry Volume of Concrete = 1 x 1.54 = 1.54 m^{3}
Aggregate = (3/5.5) x 1.54 = 0.84 m^{3 }∴ 3 is a part of cement, 5.5 is sum of ratio
Density of Aggregate is 1500/m^{3 }
Calculation for KG = 0.84 x 1500 = 1260 kg
As we know that 1 m3 = 35.31 CFT
Calculation for CFT = 0.84 x 35.31 = 29.66 Cubic Feet
Also you can Download Excel Sheet for Calculate Concrete Volume (Cement, Sand and Aggregate ) Quantity.
Excel Sheel For Concrete Quantity Calculation
Now we start calculation for find Cement, Sand quality in mortar for Plaster
Area of brick wall for plaster = 3m x 3m =9m^{2}
Plaster Thickness = 12mm (Outer20mm, Inner 12mm)
Volume of mortar = 9m^{2} 0.012m = 0.108m^{3}
Ratio for Plaster Taken is = 1 : 6
Sum of ratio is = 7
Calculation for Cement Volume
Dry Volume of Mortar = 0.108 1.35 = 0.1458 m^{3}
Cement= (1/7) = 0.0208 m^{3 }
Density of Cement is 1440/m^{3}
= 0 1440 = 29.99 kg
We know each bag of cement is 50 kg
= (29.99/50) = 0.599 Bags
Calculation for Sand Volume
Sand = (6/7) x 0.1458 = 0.124m^{3}
Density of Sand is 1450/m^{3}
= 0 1450 = 181.2 kg
Now we find how many CFT (Cubic feet) Required
As we know that 1m^{3} = 35.31 CFT
= 0.124*35.31
= 4.37 CFT (Cubic Feet)
Download Excel Sheet for plaster calculator
Very helpful in calculations of material. Small contractors can take help for rapid estimation of buildibg material.
Thanks a lot
Can i get a pdf document with this very helpful information
There are very important Knowledge to professional Engineers
Sir you are incredible thanks alotttttttttttttttttttt
Nice write up. Apt and explanatory. thanks so much, keep it up.
Very easy calculate and very good thanks …
Pleace help me
About cement casting and ration with type of concrit?
Can we multiply 1.54 cub meter in feet?
Very useful for estimation and for general calculation.
This is some brilliant information! I’m so impressed that people put such extremely helpful info on the internet. Thank you!
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brick work me sand cement ki qty excel me kese data sheet banaye?
please go to my brick calculation post there you can get your excel sheet
Very informative
Very helpful and educative. Can have a PDF copy of this very information.
Thats good explain i like
can u send more information about mixing ratio in ethiopia standard
Very important.. Thanks
Thank you very much for this invaluable breakdown. I have a question, I’m a Nigerian and the mix ratio we use some times get me confused. for example 1:3:6, and 1:2:4 are M15 and M25 respectively, I still see some people saying the latter is M20. Please, I want to really know what is the standard mix ratio. I would also love it if we can get most of your tips in pdf.
Thank you