Ready Mix Concrete Calculator — How Much to Order

Enter your project dimensions to calculate cubic yards of ready mix concrete. Get accurate estimates with waste factor included. Free, no signup required.

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What is Ready Mix Concrete?

Ready mix concrete is concrete produced in a batching plant according to a set recipe and then transported to the construction site by truck-mounted transit mixers. The process ensures precise proportioning of cement, aggregates, water, and admixtures, resulting in a more consistent and reliable product than site-mixed concrete. Once delivered, the concrete must be placed and finished before it reaches initial set, typically within 90 minutes of batching.

Ready mix is the preferred choice for large concrete pours where uniformity, speed, and structural integrity are priorities. Projects ranging from driveways and patios to foundations and structural slabs all benefit from the quality control that a central batching plant provides.

Ready Mix vs Bags: When to Use Which

Choosing between ready mix concrete and bagged concrete depends primarily on project volume. Use the table below as a general guide:

Volume NeededBest OptionWhy
Under 1 cubic yardBagged concreteReady mix short-load fees make small orders expensive; bags are cheaper and flexible
1–3 cubic yardsEitherReady mix is convenient but short-load fees apply; bags require significant labor to mix
Over 3 cubic yardsReady mixFar faster to place, more consistent quality, and lower cost per yard than bags

How to Order Ready Mix Concrete

Ordering ready mix concrete involves more than just specifying a volume. Follow these steps for a smooth delivery:

  1. Calculate your volume accurately. Use the calculator above, then add 10 percent for waste. Most suppliers sell in quarter-yard increments, so round up to the nearest 0.25 yards.
  2. Specify the mix design. Tell the dispatcher the required compressive strength (e.g., 3,000 psi), slump (workability), and any special admixtures such as air entrainment for freeze-thaw areas or fiber reinforcement.
  3. Confirm site access. A standard ready mix truck is 8 feet wide and can weigh 60,000 pounds loaded. Ensure the delivery route can support the weight and that the truck can reach within a reasonable distance of the pour area.
  4. Schedule 2–3 days in advance. During peak season, book even earlier. Confirm the delivery window the day before and have all forms, reinforcement, and finishing tools ready.
  5. Have enough crew. Concrete must be placed and finished before it stiffens. Plan on one person per cubic yard for most residential pours, plus a dedicated finisher.

Most suppliers allow the truck to wait on site for a limited time (often 30 minutes) before charging waiting fees. Have your forms, rebar, and tools fully prepared before the truck arrives.

Ready Mix Concrete Prices

Ready mix concrete prices vary by region, season, and mix design. As a general benchmark, standard residential concrete (3,000 to 4,000 psi) costs approximately $125 to $165 per cubic yard in most US markets. Higher-strength mixes or specialty admixtures will increase the per-yard price by $10 to $30.

Short-load fees apply to orders under 5 cubic yards and typically range from $50 to $200 depending on the supplier. Delivery charges vary by distance from the plant, generally $15 to $25 per mile beyond the standard delivery radius. Some suppliers include delivery within a certain radius in the base price.

Always get quotes from two or three local ready mix suppliers before committing. Prices can vary by 15 to 20 percent between suppliers in the same market, and some offer discounts for full truck loads (typically 9 to 11 cubic yards) that eliminate short-load fees entirely.

Frequently Asked Questions

What is ready mix concrete?
Ready mix concrete is concrete that is batched and mixed at a central plant and delivered to the job site in a rotating drum truck. The mix design is precisely controlled at the plant, ensuring consistent water-to-cement ratios, aggregate grading, and admixtures. Ready mix concrete arrives at your site ready to pour, eliminating the need to mix bags on site. It is available in a wide range of compressive strengths, typically 2,500 psi to 5,000 psi for residential and commercial applications.
How many cubic yards do I need for my project?
Use the calculator above to determine cubic yards. For a slab, multiply length (ft) by width (ft) by thickness (ft) and divide by 27 to convert cubic feet to cubic yards. Always add 10 percent for waste and spillage. For example, a 10x20 slab at 4 inches thick requires (10 x 20 x 0.333) / 27 = 2.47 cubic yards, plus 10 percent waste brings the order to approximately 2.72 cubic yards. Most suppliers round to the nearest quarter yard, so you would order 2.75 yards.
What is the minimum order for ready mix concrete?
Most ready mix suppliers require a minimum order of 1 cubic yard. Some suppliers accept half-yard minimums for small jobs, but short-load fees typically apply to any order under 5 cubic yards. Short-load fees range from $50 to $200 depending on the supplier and your region. If your project requires less than 1 yard of concrete, bagged concrete mixed on site is usually more economical than paying short-load fees.
How much does ready mix concrete cost per yard?
Ready mix concrete typically costs $125 to $165 per cubic yard for standard residential mixes (3,000 to 4,000 psi). Higher-strength mixes, fiber reinforcement, or accelerating admixtures add to the base price. Delivery fees vary by distance from the plant, typically $15 to $25 per mile beyond a standard radius. Short-load fees for orders under 5 yards can add $50 to $200 to the total. Prices vary significantly by region and season, so always get quotes from two or three local suppliers before ordering.
How far in advance should I schedule ready mix delivery?
Schedule ready mix delivery at least 2 to 3 business days in advance for most residential projects. During peak construction season (spring through fall), scheduling 5 to 7 days ahead is recommended. Confirm the delivery window the day before your pour and ensure your site is fully prepared: forms set and oiled, rebar or wire mesh in place, base compacted, and enough workers on hand to spread and finish the concrete before it sets. Have a backup plan if weather forces a postponement.
What strength concrete do I need?
For residential driveways and patios, 3,000 psi concrete is standard. For garage floors and footings, 3,500 psi is common. Structural elements such as beams, columns, and foundations in colder climates typically use 4,000 to 4,500 psi. Always consult your local building code and structural drawings for the specified compressive strength. In freeze-thaw climates, specify an air-entrained mix with 5 to 7 percent air content to improve durability against freeze-thaw cycles.