Aggregate Quantity Calculator

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Calculate the coarse aggregate (jelly / metal) needed for a concrete job in cubic feet, cubic metres and tonnes.

Inputs

Wet volume of concrete (m³)

Concrete grade / mix ratio

Aggregate rate (₹/m³)

How to use this calculator: Aggregate Quantity Calculator

Calculate the coarse aggregate (jelly / metal) needed for a concrete job in cubic feet, cubic metres and tonnes. The example below is calculated by this page's real engine from the displayed inputs.

1Confirm that the Aggregate Quantity Calculator matches the quantity or design check you need.
2Enter Wet volume of concrete and Aggregate rate using the units printed beside each field.
3Select the applicable Concrete grade / mix ratio options; these choices change the calculation method or factors.
4Calculate, then follow the substituted equations in the worked example and compare the result with any stated limit.
5Read the assumptions, warnings and cited references before using the result for a financial, medical or engineering decision.

Input guide and example values

Use values from the same measurement basis and time period. Conditional fields appear only when the related option is selected.

Input	Example value	Why it matters
Wet volume of concrete	10 m³	Measured or known wet volume of concrete used by the calculation engine.
Concrete grade / mix ratio	M20 — 1 : 1.5 : 3	Select the option that matches the real installation or scenario.
Aggregate rate	1500 ₹/m³	Optional input; leave the supplied default only when it matches your case.

Formula inputs & variables for Aggregate Quantity Calculator

These are the named quantities used by this calculator. When the source formula does not define a mathematical symbol, OneCalcApp keeps the real input label instead of inventing one.

Variable / input	Unit	Meaning in this calculation
Wet volume of concrete	m³	Measured or known wet volume of concrete used by the calculation engine.
Concrete grade / mix ratio	—	Select the option that matches the real installation or scenario.
Aggregate rate	₹/m³	Optional input; leave the supplied default only when it matches your case.

Formula, derivation and worked example

Coarse aggregate is the largest share of a concrete mix — three parts out of 5.5 in M20. Take the wet concrete volume, add 54% for the dry state, and split it by the mix ratio. Crushed 20 mm stone weighs about 1,500 kg per cubic metre loose.

Dry volume = wet volume × 1.54

Aggregate = dry volume × aggregate part ÷ total parts

Weight = volume × 1500 kg/m³

Substitution steps

1. Dry volume
wet × 1.54
= 15.4 m³
2. Aggregate share
dry × 3/5.5
= 8.4 m³
3. Weight
volume × 1500
= 12,600 kg

Computed example results

Aggregate required: 8.4 m³; 297 cu ft
Weight: 12.6 tonne
In brass: 2.97 brass; 1 brass = 100 cu ft = 2.832 m³
Tipper loads: 1.05; 1 tipper ≈ 8 m³
Mix ratio used: 1 : 1.5 : 3
Cost: ₹12,600

Understanding the result

Read the main result together with supporting checks, assumptions, limits and intermediate values.

For a manual check, repeat the first equation, confirm the units and change one input at a time.

Assumptions and calculation scope

Wet volume of concrete is assumed to be entered in m³; converting from another unit before entry avoids changing the numerical meaning of the calculation.
Concrete grade / mix ratio is assumed to match the real case. Choosing a different available option can change the method, factor or interpretation used by this calculator.
Aggregate Quantity Calculator applies the displayed Dry volume = wet volume × 1.54 relationship to the entered construction inputs. Factors that are not exposed as inputs or stated assumptions are outside this calculator's calculation scope.

Common mistakes when using Aggregate Quantity Calculator

Do not mix units for Wet volume of concrete (m³), Aggregate rate (₹/m³). A unit mismatch changes the input magnitude even when the typed number looks reasonable.
Do not leave Concrete grade / mix ratio on the default choice unless that choice matches the real scenario; the selected option can change the calculation path or factor.
Do not replace the displayed Dry volume = wet volume × 1.54 relationship with a different convention without also changing the underlying assumptions; compare like-for-like methods when checking the result.
Do not treat Aggregate required = 8.4 m³ from the worked example as a universal answer. It belongs to the displayed example inputs and must be recalculated for the actual case.

When the Aggregate Quantity Calculator is useful

Aggregate Quantity Calculator is designed for cases where Wet volume of concrete, Concrete grade / mix ratio, Aggregate rate are known and you need Aggregate required, Weight, In brass. The page keeps the live calculator, calculation method and worked example together so the result can be checked instead of treated as a black-box number.

Use the calculator for the scope described by its inputs and notes. The displayed method is Dry volume = wet volume × 1.54. If the real project or decision needs factors that are not represented here, treat the result as an estimate and add the missing checks separately.

Wet volume of concrete and Concrete grade / mix ratio: what changes the answer

The worked example uses Wet volume of concrete = 10 m³, Concrete grade / mix ratio = M20 — 1 : 1.5 : 3, Aggregate rate = 1500 ₹/m³. With those values, Aggregate required is 8.4 m³. Changing an input should be interpreted according to that field's unit, range, option and hint rather than by the number alone.

For this calculator, the main input roles are: Wet volume of concrete (m³): Measured or known wet volume of concrete used by the calculation engine. Concrete grade / mix ratio: Select the option that matches the real installation or scenario. Available choices include M25 — 1 : 1 : 2, M20 — 1 : 1.5 : 3, M15 — 1 : 2 : 4, M10 — 1 : 3 : 6. Aggregate rate (₹/m³): Optional input; leave the supplied default only when it matches your case.

How to sanity-check a Aggregate Quantity Calculator result

Start by confirming the entered values and units, then compare the substituted working with the displayed formula or calculation steps. Pay particular attention to Aggregate required, because it is the first worked-example output shown by the live engine.

Finally, compare the result with the assumptions, warnings and related calculators on this page. A nearby calculator can be useful as a cross-check when it measures the same workflow from a different input or output direction.

Next logical calculator

Continue with Brass Calculator (Brass to CFT, m³ and kg)

Brass Calculator (Brass to CFT, m³ and kg) is directly connected from Aggregate Quantity Calculator as a source-defined continuation or comparison.

Open Brass Calculator (Brass to CFT, m³ and kg)

Formula

Dry volume = wet volume × 1.54
Aggregate = dry volume × aggregate part ÷ total parts
Weight = volume × 1500 kg/m³

Engineering notes

Unit notes: 1 m³ = 35.315 cu ft; 1 brass = 100 cu ft = 2.832 m³. 20 mm crushed aggregate ≈ 1,500 kg/m³, so 1 m³ ≈ 1,500 kg (1.5 tonne) and 1 brass ≈ 4.25 tonnes.

Coarse aggregate per 1 m³ of concrete

Dry volume factor 1.54; aggregate density 1,500 kg/m³. Multiply each row by your wet concrete volume in m³.

Grade	Mix ratio	Aggregate (m³)	Aggregate (cu ft)	Aggregate (kg)	Aggregate (brass)
M25	1 : 1 : 2	0.770	27.2	1155	0.272
M20	1 : 1.5 : 3	0.840	29.7	1260	0.297
M15	1 : 2 : 4	0.880	31.1	1320	0.311
M10	1 : 3 : 6	0.924	32.6	1386	0.326
M7.5	1 : 4 : 8	0.948	33.5	1422	0.335
M5	1 : 5 : 10	0.963	34.0	1444	0.340

1 cubic metre of aggregate in kg

This calculator uses 1,500 kg/m³ for loose crushed aggregate, so 1 m³ is about 1.5 tonnes. Actual bulk density varies with stone size, grading, moisture and compaction.

1 tonne of aggregate in CFT

At 1,500 kg/m³, 1 metric tonne occupies 0.667 m³ or about 23.5 CFT. Use the supplier's measured loose bulk density when a weighbridge value is available.

1 unit or 1 brass of aggregate

1 brass is 100 CFT = 2.8317 m³. At the page assumption of 1,500 kg/m³, that volume weighs about 4,248 kg or 4.25 tonnes.

Worked example

110 m³ of M20 → dry volume 15.4 m³.
2Aggregate = 15.4 × 3/5.5 = 8.4 m³.
3Weight = 8.4 × 1500 = 12.6 tonnes.

Tips

Use 20 mm aggregate for slabs and beams, 10–12 mm for thin sections and heavy reinforcement.
Wash dusty aggregate — silt on the stone weakens the bond with cement.

Frequently asked questions

What is jelly or metal?

Local names for crushed coarse aggregate. 20 mm is the standard size for house construction.

How many cubic feet in a tonne of aggregate?

About 23.5 CFT, since a cubic metre weighs roughly 1,500 kg.

How many kg is 1 m³ of aggregate?

About 1,500 kg for loose crushed aggregate using this calculator's reference density. Supplier values can differ by size, grading and moisture.

How much aggregate does a 1 : 2 : 4 mix need?

About 0.88 m³ (31 cu ft, 1,320 kg) per cubic metre of M15 concrete, using the 1.54 dry volume factor.

What is 1 brass of aggregate in m³ and kg?

One brass is 100 cu ft = 2.832 m³, which weighs roughly 4,250 kg (4.25 tonne) for 20 mm crushed stone.

Does the grade change the aggregate quantity?

Yes. Richer mixes such as M25 use more cement and slightly less aggregate per cubic metre.

What inputs does the Aggregate Quantity Calculator use?

It uses Wet volume of concrete, Concrete grade / mix ratio, and Aggregate rate. Follow the unit printed for each field and choose any selectable option to match the real scenario.

What does the Aggregate Quantity Calculator calculate?

It calculates Aggregate required, Weight, In brass, Tipper loads, Mix ratio used, and Cost. With the displayed default inputs, Aggregate required is 8.4 m³.

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