Find how much your concrete weighs.
⚙️Calculation Parameters
📊Calculated Output
How Concrete Mass Calculator Works?
To calculate concrete mass, the Concrete Mass Calculator multiplies the pier volume by the concrete density. The process takes 4 steps.
Enter the volume
Type the tube size and count, or a volume in cubic feet (ft³) or cubic meters (m³).
Pick a density
Choose normal-weight concrete at about 145 lb/ft³ (2,320 kg/m³), or enter a density from the mix design.
Multiply
The calculator multiplies volume by density.
Read mass
The tool shows pounds (lb), kilograms (kg), US tons and metric tonnes (t).
Concrete Mass Calculator Formula
The Concrete Mass Calculator uses mass = volume × density.
Mass
m = V × ρρ (rho) is density.
Imperial
m (lb) = V (ft³) × 145Normal-weight concrete.
Metric
m (kg) = V (m³) × 2,320Same density in SI units.
Worked example: one 12 in × 48 in pier
- V = 3.142 ft³ (0.0890 m³)
- m = 3.142 × 145 = 456 lb
- m = 207 kg = 0.228 US tons
Concrete Mass Calculator Conversion Table
The concrete mass conversion table lists the mass of one 12 in × 48 in (30 cm × 122 cm) pier at 5 densities.
| Concrete type | Density (imperial) | Density (metric) | Mass (lb) | Mass (kg) |
|---|---|---|---|---|
| Lightweight structural | 115 lb/ft³ | 1,842 kg/m³ | 361 lb | 164 kg |
| Normal-weight, cured | 145 lb/ft³ | 2,323 kg/m³ | 456 lb | 207 kg |
| Normal-weight, fresh | 150 lb/ft³ | 2,403 kg/m³ | 471 lb | 214 kg |
| Reinforced (with rebar) | 150 lb/ft³ | 2,403 kg/m³ | 471 lb | 214 kg |
| Heavyweight | 200 lb/ft³ | 3,204 kg/m³ | 628 lb | 285 kg |
Density values are typical ranges. The mix design gives the exact value.
What is Concrete Mass Calculator?
A Concrete Mass Calculator is a weight tool that calculates the mass of a concrete pier or column from its volume and density.
Mass matters for 3 reasons: the pier adds dead load to the soil, it resists uplift on pergolas and signs, and precast or above-ground pours need lifting and shoring plans. A single 12 in × 48 in pier weighs about 456 lb (207 kg).
Fresh concrete is a little heavier than cured concrete, since some water leaves as it dries. The calculator offers both values.
What are the uses of Concrete Mass Calculator?
There are 4 main uses of the Concrete Mass Calculator.
Dead load checks
Designers add pier weight to soil bearing checks.
Uplift resistance
Engineers count pier mass against wind uplift.
Precast lifting
Crews size straps and equipment for precast piers.
Formwork loads
Builders size bracing for tall column forms.
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