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Concrete Weight Calculator

Enter your concrete dimensions below to calculate total weight in pounds and tons — and find out exactly what dumpster size you need to haul it away.

🧱 Concrete Weight Calculator Updates instantly
Calculation method
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Total pounds
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Total tons
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Cubic yards

Concrete is heavy debris — get accurate local pricing before you rent.

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How much does concrete weigh?

Standard concrete weighs 150 pounds per cubic foot, or approximately 4,050 pounds (2 tons) per cubic yard. This density applies to normal-weight concrete used in the vast majority of residential and commercial construction — driveways, patios, slabs, footings, and foundations.

Lightweight concrete (used in some block construction) weighs around 145 lbs/ft³, while heavyweight concrete can reach 156 lbs/ft³ or more.

For reference: a standard 10×10 ft concrete patio that's 4 inches thick contains about 1.23 cubic yards and weighs roughly 5,000 pounds — 2.5 tons.

Renting a dumpster for concrete

Concrete is one of the heaviest demolition materials, and most dumpster rentals include a weight limit (typically 1–3 tons) in the base price. Exceeding that limit triggers overage fees of $50–$100 per ton.

For concrete-only loads, many providers offer mini dumpsters or concrete-specific containers priced by the ton rather than by container size. This is usually more cost-effective for heavy concrete debris.

Always disclose that your load is primarily concrete when requesting a quote — it affects both the container type and the final price.

Quick Reference

Concrete weight by common dimensions

Project Dimensions Cubic yards Est. weight
Small patio10×10 ft, 4" thick1.2 yd³~5,000 lbs
Standard driveway20×20 ft, 4" thick4.9 yd³~20,000 lbs
Large driveway30×20 ft, 4" thick7.4 yd³~30,000 lbs
Sidewalk section4×20 ft, 4" thick1.0 yd³~4,000 lbs
FAQ

Concrete weight questions

How much does a cubic yard of concrete weigh?+
A cubic yard of standard concrete weighs approximately 4,050 pounds (about 2 tons). This is based on concrete density of 150 lbs per cubic foot × 27 cubic feet per cubic yard.
How much does a cubic foot of concrete weigh?+
One cubic foot of standard concrete weighs approximately 150 pounds. Lightweight concrete is around 145 lbs/ft³ and heavyweight concrete up to 156 lbs/ft³.
How many tons is a yard of concrete?+
One cubic yard of concrete is approximately 2 tons (4,050 lbs). For practical dumpster purposes, assume 2 tons per cubic yard when estimating weight limits and overage fees.
What size dumpster do I need for a concrete driveway?+
A 20×20 driveway at 4" thick weighs around 20,000 lbs (10 tons). Most dumpster providers can't haul that much concrete in one load. Call for a quote — many providers offer concrete-specific hauling priced by the ton, or recommend multiple loads with a smaller container.
Can I mix concrete with other debris in the dumpster?+
You can, but concrete is so dense that mixing it with lighter debris is usually wasteful. A container half-filled with concrete may already exceed the weight limit. Most providers recommend keeping concrete separate for accurate weight-based pricing.
How much does a concrete slab weigh per square foot?+
A concrete slab weighs approximately 12.5 lbs per square foot at 1 inch thick. At the standard 4-inch residential slab thickness, that is 50 lbs per square foot. A 10×10 slab (100 sq ft) at 4 inches thick weighs roughly 5,000 lbs (2.5 tons). Use the calculator above to get the exact weight for any slab size.
How do I calculate the weight of a concrete slab?+
The formula: Length (ft) × Width (ft) × Thickness (ft) × 150 lbs/ft³ = Total weight in lbs. Convert thickness from inches to feet first (divide by 12). Example: a 12×20 slab at 4 inches thick = 12 × 20 × 0.333 × 150 = 12,000 lbs (6 tons). Our online concrete weight calculator above handles this automatically.
How much does a concrete driveway weigh?+
A standard single-car driveway (10×20 ft, 4" thick) weighs approximately 10,000 lbs (5 tons). A two-car driveway (20×20 ft, 4" thick) weighs around 20,000 lbs (10 tons). Most heavy-debris dumpsters hold 2–5 tons, so a full driveway removal typically requires 2–5 dumpster loads. Enter your exact dimensions above for a precise estimate.
What is the weight of concrete in kg per cubic meter?+
Standard concrete weighs approximately 2,400 kg per cubic meter (2.4 tonnes/m³). This is the metric equivalent of 150 lbs per cubic foot or 4,050 lbs per cubic yard. Lightweight concrete ranges from 1,600–2,000 kg/m³; heavyweight concrete can reach 2,900+ kg/m³.
How many cubic yards of concrete fit in a dump truck?+
A standard tandem-axle dump truck holds 10–14 cubic yards of concrete by volume, but weight limits the practical load to about 5–6 cubic yards (10–12 tons) for concrete specifically. Roll-off dumpsters for concrete disposal are typically 10–12 yard containers with weight limits of 2–5 tons per load.
Reference Table

Concrete Weight by Volume — Quick Reference

Volume Weight (lbs) Weight (tons) Dumpster Impact
1 cubic foot150 lbs0.075 tonsNegligible
1 cubic yard4,050 lbs2.03 tonsNear 10-yd weight limit
2 cubic yards8,100 lbs4.05 tonsExceeds most standard dumpster limits
10×10 slab, 4"5,000 lbs2.5 tonsNear 1-load limit
12×20 slab, 4"12,000 lbs6 tons2–3 dumpster loads
20×20 driveway, 4"20,000 lbs10 tons4–5 dumpster loads
20×40 driveway, 4"40,000 lbs20 tons8–10 dumpster loads

Based on standard concrete density of 150 lbs/ft³ (4,050 lbs/yd³). Actual weights vary slightly by mix design and cure state.

Ready to rent a dumpster for your concrete project? → Concrete dumpster rental guide & pricing

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