Concrete Yards Calculators
Written by Shakeel Alvi · Technically reviewed by Muhammad Qasim, PEC Reg. No. 63430 · Last reviewed: 2026-07-11
Cubic yards are the currency ready-mix concrete gets sold in, and this category holds three calculators built around that one unit — one for volume, one for weight, one for projects run entirely in metric.
Concrete Yards Calculator
Convert and compute volume into cubic yards.
Concrete Weight Calculator
Convert any concrete volume (yd³, ft³, m³) or pour dimensions to weight in lb, short tons, and kg — with normal-weight, lightweight, and bag-mix presets.
Concrete Cubic Meter Calculator
Metric-first concrete calculator — enter dimensions in m / cm / mm to get volume in m³, weight in kg, and bag counts for 20 / 25 / 40 kg pre-mix bags.
What you're deciding in this category
The real decision here is rarely the arithmetic — dividing cubic feet by 27 is not hard — it's which number you actually need to hand someone. A supplier needs cubic yards to schedule a truck. A hauler or a crane operator needs weight, because a load limit is measured in pounds, not volume. A project spec written in millimeters needs the whole calculation kept in metric so nothing gets lost converting yards to meters and back. Pick the tool that matches the number the other party is asking for, not the one that matches how you're used to thinking about the job — a homeowner ordering three yards of concrete and a rigger checking whether a mixer truck can cross a weight-limited bridge are solving different problems with the same slab.
Which calculator fits which job
All three start from the same dimensions; what changes is the unit the answer comes out in, and which one matches the number someone else on the project is waiting for.
- Concrete Yards Calculator
- Use this as the default when a ready-mix plant needs an order in cubic yards — enter project dimensions or a known cubic-foot figure and it converts straight to the yardage a dispatcher will actually schedule.
- Concrete Weight Calculator
- Use this when the question isn't how much concrete but how heavy it is — hauling a load to a dump site, checking a crane's rigging capacity, or estimating slab dead load — with presets for normal-weight, lightweight, and bag-mixed concrete since density isn't fixed.
- Concrete Cubic Meter Calculator
- Use this for any project specified in millimeters or meters, or for imported pre-mix bags sold in 20, 25, or 40 kg sizes — it keeps every input and output in metric so nothing gets lost rounding back and forth from yards.
Standards that govern Concrete Yards
ASTM C94/C94M — Governs how ready-mix concrete is batched, measured, and delivered, including the plant's obligation to certify that the volume stated on the delivery ticket matches what's actually discharged from the drum. It sets the allowable tolerance between ordered and delivered volume — the reference a dispatcher works from if a yardage figure ever gets disputed, not the decimal your calculator produced.
Trusting the decimal, not the dispatcher's rounding
The calculator will happily return 3.18 cubic yards, and that decimal feels precise, but no plant delivers a partial-yard order down to the hundredth. Concrete gets batched and billed in quarter-yard increments at most plants, so 3.18 becomes 3.25 on the invoice whether you round it yourself or not. The number that actually costs money is the short-load minimum — most plants charge a flat fee below roughly 4 to 5 yards regardless of how little concrete you order, so a 3.18-yard driveway pour and a 4.5-yard one can land at nearly the same delivered price. Check the local minimum before trusting the decimal.
Frequently Asked Questions
- How many bags of concrete equal a cubic yard?
- Roughly forty-five 80 lb bags or sixty 60 lb bags make one cubic yard — the bag calculators in this site's Concrete Bags category handle that conversion directly if you're buying bagged mix instead of ready-mix.
- How much does a cubic yard of concrete weigh?
- Normal-weight concrete runs about 4,050 lbs per cubic yard, roughly two tons — lightweight mixes drop closer to 3,000 lbs, which is why the weight calculator asks for mix type before giving a figure.
- What's a short load and why does it cost extra?
- Most ready-mix plants set a minimum order, often 4 to 5 cubic yards, and charge a flat short-load fee below it — a 2-yard order can end up costing nearly as much delivered as a 4-yard one.
- Can I get cubic yards from square footage alone?
- No. Square footage is area, not volume — you need thickness too. Multiply area by depth in feet, divide by 27, and only then do you have a yardage figure a plant can quote against.
- Should a metric project ever use the cubic yard calculator?
- Better not to. Converting a metric drawing to yards and back introduces rounding at two separate steps — the cubic meter calculator keeps millimeters, meters, and kilograms native the whole way through.