Cubic Feet to Cubic Yards Calculator
Convert cubic feet (ft³) to cubic yards (yd³) instantly with our free calculator. Built for contractors, engineers, and DIY homeowners, this page helps you translate room dimensions, slab volumes, and excavation quantities into the unit most suppliers quote: cubic yards. Enter a value in cubic feet to see the yardage update in real time, plus the exact formula and a worked example. Use the quick conversion table for common amounts like 27, 50, or 100 ft³, and scan practical use cases for concrete, soil, gravel, and dumpster sizing. You can also switch direction to convert yards back to feet, copy results with one click, and rely on the formula breakdown to verify supplier quotes. The calculator is optimized for job sites, site plans, and quick checks in the field.
Calculate Cubic Feet to Cubic Yards
Enter the volume in cubic feet (ft³) to convert
Calculation:
100 ft³ ÷ 27 = 3.7037 yd³
Formula: Cubic Yards = Cubic Feet ÷ 27
Cubic Feet to Cubic Yards Conversion Table
Quick reference for common cubic feet to cubic yards conversions.
| Cubic Feet (ft³) | Cubic Yards (yd³) | Common Use |
|---|---|---|
| 1 ft³ | 0.037 yd³ | Small projects |
| 10 ft³ | 0.370 yd³ | Garden beds |
| 27 ft³ | 1 yd³ | Standard conversion |
| 50 ft³ | 1.852 yd³ | Small slab |
| 100 ft³ | 3.704 yd³ | Driveway section |
| 200 ft³ | 7.407 yd³ | Large foundation |
| 500 ft³ | 18.519 yd³ | Commercial project |
| 1,000 ft³ | 37.037 yd³ | Large-scale construction |
Conversion Formula Explained
Understand the exact relationship between cubic feet and cubic yards.
The Basic Formula
Cubic Yards = Cubic Feet ÷ 27
Or equivalently:
Cubic Yards = Cubic Feet × 0.037037
Why divide by 27?
The number 27 comes from the relationship between feet and yards. Since 1 yard equals 3 feet, we cube that relationship when calculating volume.
- 1 yard = 3 feet (linear measurement)
- 1 square yard = 3 × 3 = 9 square feet (area)
- 1 cubic yard = 3 × 3 × 3 = 27 cubic feet (volume)
Step-by-step example
Let's convert 135 cubic feet to cubic yards:
- Start with the formula: yd³ = ft³ ÷ 27
- Substitute the value: yd³ = 135 ÷ 27
- Calculate: yd³ = 5
- Result: 135 cubic feet = 5 cubic yards
Pro tip
When ordering materials like concrete or gravel, suppliers typically price by the cubic yard. Converting your measurements from cubic feet to cubic yards ensures you order the correct amount and get accurate pricing quotes.
Enter cubic feet value
Type the number of cubic feet you want to convert in the input field.
View instant result
The calculator automatically displays the result in cubic yards.
Use the result
Copy the result or use it for your project calculations.
When to Use This Conversion
Common applications for cubic feet to cubic yards conversion.
Concrete Orders
Calculate how many cubic yards of concrete you need for slabs, foundations, driveways, or sidewalks. Concrete suppliers sell by the cubic yard.
Example: A 10ft × 10ft × 0.5ft slab = 50 ft³ = 1.85 yd³
Soil & Gravel
Determine how much topsoil, gravel, or mulch you need for landscaping projects. Most landscape suppliers price materials per cubic yard.
Example: Garden bed 15ft × 10ft × 1ft = 150 ft³ = 5.56 yd³
Dumpster Capacity
Dumpsters are sized in cubic yards (10, 20, 30, 40 yd³). Convert your debris volume from cubic feet to find the right dumpster size.
Example: 270 ft³ of debris = 10 yd³ dumpster needed
Excavation Projects
Calculate the volume of dirt to be removed or filled. Excavation contractors typically estimate and bill in cubic yards.
Example: 20ft × 15ft × 3ft hole = 900 ft³ = 33.33 yd³
Mulch & Compost
Determine how much mulch or compost you need for garden beds, tree rings, or landscaping. Bulk materials are sold by the cubic yard.
Example: 3-inch mulch layer on 100 sq ft = 25 ft³ = 0.93 yd³
Cost Estimation
Convert measurements to cubic yards for accurate material cost estimates. Most construction materials are priced per cubic yard.
Example: Concrete at $150/yd³: 100 ft³ = 3.7 yd³ = $555
Frequently Asked Questions
Answers to common questions about ft³ to yd³ conversions.
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