Calculate exactly how much concrete you need for your driveway. Get cubic yards, bags needed, rebar, and cost estimates.
How to use this calculator
1Enter your driveway length in feet
2Enter your driveway width in feet
3Select the thickness (4 inches for cars, 6 inches for heavy vehicles)
4Choose your concrete strength (3000 PSI is standard)
5View your material estimate and cost breakdown
Planning Your Concrete Driveway
A concrete driveway is a long-term investment that can last 30-40 years with proper installation. Getting the calculations right from the start prevents costly mistakes and ensures you order the right amount of materials.
Understanding Driveway Thickness
The thickness of your driveway depends on what you'll be parking:
4 inches - Standard passenger cars and light trucks
5 inches - Multiple vehicles, heavier trucks
6 inches - RVs, heavy equipment, commercial vehicles
Concrete Strength (PSI) Explained
PSI measures concrete's compressive strength:
2500 PSI - Light duty, foot traffic only
3000 PSI - Standard residential driveways (most common)
3500-4000 PSI - Heavy use, commercial applications
Should You Use Rebar or Wire Mesh?
Reinforcement prevents cracking and adds strength:
Wire Mesh - For 4-5" slabs, standard residential use
Rebar - For 6"+ slabs, heavy loads, or unstable soil
How to Calculate Cubic Yards
The formula: (Length × Width × Depth in feet) ÷ 27 = Cubic Yards
Schedule early morning pour - Cooler temps = better curing
Add control joints - Every 10 feet to prevent cracking
Cure properly - Keep moist for 7 days for maximum strength
Common questions
How thick should a concrete driveway be?
For standard passenger vehicles, 4 inches is minimum. For heavier vehicles or RVs, 5-6 inches is recommended. Most residential driveways use 4-5 inches.
How much does concrete cost per cubic yard in 2026?
In 2026, ready-mix concrete costs $125-150 per cubic yard on average. 3000 PSI (standard residential) typically runs $130-140 per yard.
Do I need rebar for my driveway?
For 4-5 inch thick driveways, wire mesh is usually sufficient. For 6+ inches or heavy vehicle traffic, rebar is recommended for added strength and crack prevention.
How much extra concrete should I order?
Always add 10% extra for waste, spillage, and uneven ground. For example, if you need 2 yards, order 2.2-2.5 yards to be safe.