4 yards of concrete by type
A cubic yard is 27 cubic feet, so 4 yards is 108 cubic feet. Multiply by the weight of a cubic foot of the concrete you are using.
| Type of concrete | Density | Weight | US tons | Kilograms |
|---|---|---|---|---|
| Lightweight concrete, a rough figure | 115 lb/ft³ | 12,420 lb | 6.21 | 5,634 |
| Plain concrete, no steel | 145 lb/ft³ | 15,660 lb | 7.83 | 7,103 |
| Reinforced concrete, and the usual rule of thumb | 150 lb/ft³ | 16,200 lb | 8.10 | 7,348 |
| Heavily reinforced, a rough figure | 160 lb/ft³ | 17,280 lb | 8.64 | 7,838 |
The slab 4 yards makes, and what it weighs per square foot
The total stays at 16,200 lb. A thinner slab spreads it over more ground.
| Slab thickness | Area from 4 yards | Weight per sq ft | Total weight |
|---|---|---|---|
| 3 in | 432 sq ft | 37.5 lb | 16,200 lb |
| 4 in | 324 sq ft | 50.0 lb | 16,200 lb |
| 5 in | 259 sq ft | 62.5 lb | 16,200 lb |
| 6 in | 216 sq ft | 75.0 lb | 16,200 lb |
| 8 in | 162 sq ft | 100.0 lb | 16,200 lb |
Four yards: a one-car pad
4 yards is 16,200 lb of normal concrete, 8.10 tons. Poured 4 inches thick that is 324 square feet, and a 16x20 slab at 4 inches takes 3.95 cubic yards and weighs 16,000 lb.
It is 40% of a 10-yard truck. In 80 lb bags it would be 180 bags, 14,400 lb to lift into a mixer one at a time, so this size is a ready-mix job.
Worked example
4 × 27 = 108 cubic feet. 108 × 150 lb = 16,200 lb. 16,200 ÷ 2,000 = 8.10 US tons.
Nearby amounts
| Concrete | Cubic feet | Weight | US tons | Truck loads |
|---|---|---|---|---|
| 1 yard | 27 ft³ | 4,050 lb | 2.03 | 1 |
| 2 yards | 54 ft³ | 8,100 lb | 4.05 | 1 |
| 3 yards | 81 ft³ | 12,150 lb | 6.08 | 1 |
| 4 yards | 108 ft³ | 16,200 lb | 8.10 | 1 |
| 5 yards | 135 ft³ | 20,250 lb | 10.13 | 1 |
| 6 yards | 162 ft³ | 24,300 lb | 12.15 | 1 |
| 8 yards | 216 ft³ | 32,400 lb | 16.20 | 1 |
For a slab, wall or footing of your own size use the concrete weight calculator, and the concrete calculator for how many yards to order. The guide how much does concrete weigh has the weights per square foot. Hauling bagged mix yourself? See how many 80 lb bags a pickup can carry.
Want to change anything else? The calculator above is the full Concrete Weight Calculator: edit any number and the results update instantly.
Tools & materials for this project
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Frequently asked questions
How much does 4 yards of concrete weigh?
About 16,200 lb, or 8.10 US tons, for normal concrete at 150 lb per cubic foot. 4 yards is 108 cubic feet.
How many tons is 4 yards of concrete?
8.10 US tons (7,348 kg). Heavily reinforced concrete is nearer 8.64 tons and lightweight concrete 6.21 tons.
Will 4 yards of concrete fit in one truck?
Yes. A ready-mix truck carries around 10 cubic yards, so 4 yards is 40% of a 10-yard ready-mix truck.
Is 16,200 lb the wet or the cured weight of 4 yards of concrete?
It is a planning figure for either: we have no sourced separate cured weight for normal concrete, so this page does not give one. The Federal Highway Administration puts typical normal-weight concrete at 145 lb per cubic foot plain and about 5 lb more with reinforcement, and says ready-mix is accepted at delivery on its fresh (wet) density. At 145 lb per cubic foot 4 yards is 15,660 lb, 540 lb less than at 150. If a trailer, truck or floor limit is close, ask the plant for the fresh unit weight of your mix.
Related sizes and guides
Estimates only. Results assume standard materials and simple shapes. Supplier products vary, and the final call on quantity, structure and safety is yours. Check your local code and your supplier's guidance before ordering.