What Is the Cubic Yards Calculator?
The Cubic Yards Calculator is a free online tool designed for contractors and DIY builders who need quick, accurate calculations in the construction and building space. By entering your shape, length, width, you get instant results including cubic yards, cubic feet. No formulas to memorize, no spreadsheets to build — just enter your numbers and get the answer in seconds. Whether you're a beginner or experienced professional, this calculator saves you time and eliminates guesswork.
Why This Calculation Matters
Getting cubic yards right can make the difference between success and costly mistakes. In construction and building, small errors compound quickly. Manual calculations are error-prone and time-consuming, especially under pressure. This calculator applies proven formulas used by contractors and DIY builders worldwide, giving you confidence that your numbers are correct. Use it to plan your projects with precision and avoid common pitfalls that trip up beginners.
When Should You Use This Calculator?
This tool is most useful when you know your shape and need to find the right cubic yards. It's also great for quick estimates before committing to a decision, and to double-check manual calculations or professional quotes, and when comparing different scenarios side by side. Bookmark this page and come back whenever you need a fast, reliable answer — the calculator is always free and requires no signup.
Cubic Yards Calculator
Cubic Yards Coverage at Common Depths
Square feet covered by 1 cubic yard at various depths.
| Depth | Area Covered (sq ft) | Common Use |
|---|---|---|
| 1 inch | 324 | Light topdressing |
| 2 inches | 162 | Mulch refresh / gravel path |
| 3 inches | 108 | New mulch bed |
| 4 inches | 81 | Concrete slab / gravel drive |
| 6 inches | 54 | New lawn topsoil / deep base |
| 12 inches | 27 | Raised beds / deep fill |
How to Use This Calculator
- Enter Your Shape: Start by entering your shape — this is the primary input for the calculation.
- Fill In Additional Details: Complete the remaining fields: length, width, depth / height, diameter, depth / height, base, height of triangle, depth / thickness, top width, bottom width, height, length. Each value refines the calculation for greater accuracy.
- Click Calculate: Hit the Calculate button to run the numbers. Results appear instantly below.
- Review Your Results: Check your cubic yards, cubic feet. Use these figures to inform your next decision or compare against alternative scenarios.
How It Works
A cubic yard is 3 feet × 3 feet × 3 feet = 27 cubic feet. This calculator converts dimensions in any unit to cubic yards for any common shape.
The basic rule:
- Rectangle: Length × Width × Depth. Cylinder: π × (diameter/2)² × height
- Triangle: ½ × base × height × depth. Trapezoid: ½ × (top + bottom) × height × length
- All measurements are converted to feet first, then the result in cubic feet is divided by 27 for cubic yards
This is a universal volume calculator. Use it for concrete, gravel, mulch, soil, sand, or any bulk material sold by the cubic yard. For material-specific calculations with weight and cost estimates, use our dedicated calculators.
Tips & Considerations
- Double-check your shape before calculating — even small input errors can significantly change your results.
- Run the calculator with different values to compare scenarios and find the optimal approach for your situation.
- Pay attention to both cubic yards and cubic feet — they work together to give you the full picture.
- Bookmark this page for quick access next time you need to plan your projects.
- If you're unsure about your length, start with a conservative estimate and adjust from there.
Frequently Asked Questions
How many cubic feet are in a cubic yard?
There are exactly 27 cubic feet in one cubic yard. A cubic yard is 3 feet long, 3 feet wide, and 3 feet tall (3 x 3 x 3 = 27). To convert cubic feet to cubic yards, divide by 27.
How do I calculate cubic yards from inches?
Convert all measurements to feet first (divide inches by 12), then multiply length x width x depth to get cubic feet, then divide by 27 for cubic yards. Or use our calculator above — it handles unit conversion automatically.
How much area does a cubic yard cover?
One cubic yard covers: 324 sq ft at 1 inch deep, 162 sq ft at 2 inches, 108 sq ft at 3 inches, 81 sq ft at 4 inches, or 54 sq ft at 6 inches deep. The depth determines how far a cubic yard spreads.
How many wheelbarrows are in a cubic yard?
A standard 3-cubic-foot wheelbarrow holds about 1/9 of a cubic yard, so 9 wheelbarrow loads equal one cubic yard. A large 6-cubic-foot wheelbarrow takes about 5 loads. This is useful for estimating labor when moving material by hand.
What weighs more — a yard of gravel or a yard of mulch?
Gravel is much heavier. One cubic yard of gravel weighs 2,500-3,000 lbs. One cubic yard of mulch weighs 400-800 lbs. Concrete weighs about 4,000 lbs per yard, soil about 2,000-2,200 lbs, and sand about 2,700 lbs.
How many cubic yards fit in a pickup truck?
A full-size pickup truck bed holds about 2 cubic yards of mulch, 1 cubic yard of soil, or 0.5-1 cubic yard of gravel or stone (limited by weight, not volume). Never exceed your truck's payload rating — check the sticker on the driver's door jamb.