Cubic Feet to Cubic Yards Converter
Accurate volume conversion for construction, landscaping, and material calculations
Quick Conversions
Conversion Formula & Steps
Since 1 cubic yard equals 27 cubic feet, divide your cubic feet value by 27 to get cubic yards.
Conversion Steps
- Identify your volume measurement in cubic feet
- Divide the cubic feet value by 27
- The result is your volume in cubic yards
Example Calculation
Problem: Convert 81 cubic feet to cubic yards
Solution: 81 ft³ ÷ 27 = 3 yd³
Answer: 81 cubic feet equals 3 cubic yards
Popular Conversion Table
| Cubic Feet (ft³) | Cubic Yards (yd³) | Common Uses |
|---|---|---|
| 1 | 0.037 | Small box, concrete bag |
| 5 | 0.185 | Wheelbarrow load |
| 10 | 0.370 | Small garden bed |
| 27 | 1.000 | Standard cubic yard |
| 50 | 1.852 | Small driveway section |
| 81 | 3.000 | Pickup truck bed |
| 100 | 3.704 | Large landscaping project |
| 135 | 5.000 | Standard concrete pour |
| 200 | 7.407 | Medium construction project |
| 270 | 10.000 | Large dumpster capacity |
Volume Visualization
12″ × 12″ × 12″
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3′ × 3′ × 3′
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Real-World Applications
Construction Projects
Concrete contractors order materials by cubic yards but may measure spaces in cubic feet. Converting accurately prevents material shortages or excess waste.
Landscaping & Mulch
Garden centers sell soil, mulch, and gravel by cubic yards. Measuring your garden bed in feet requires conversion to order the right amount.
Waste Management
Dumpster sizes are rated in cubic yards, but debris volume is often estimated in cubic feet. Accurate conversion helps select appropriate dumpster sizes.
Moving & Storage
Moving trucks list capacity in cubic feet while storage pods use cubic yards. Conversion helps compare options and plan space needs.
Industry-Specific Examples
- Concrete pouring: A standard 10×10 foot patio at 4 inches thick = 33.33 ft³ = 1.23 yd³
- Topsoil delivery: Covering 100 sq ft at 6 inches deep = 50 ft³ = 1.85 yd³
- Gravel driveway: 20×30 foot area at 3 inches = 150 ft³ = 5.56 yd³
- Mulch for garden: 200 sq ft at 3 inches = 50 ft³ = 1.85 yd³
- Fill dirt: Leveling 500 sq ft at 6 inches = 250 ft³ = 9.26 yd³
Extended Conversion Table
| ft³ | yd³ | ft³ | yd³ | ft³ | yd³ |
|---|---|---|---|---|---|
| 1 | 0.037 | 15 | 0.556 | 100 | 3.704 |
| 2 | 0.074 | 20 | 0.741 | 150 | 5.556 |
| 3 | 0.111 | 25 | 0.926 | 200 | 7.407 |
| 5 | 0.185 | 30 | 1.111 | 300 | 11.111 |
| 10 | 0.370 | 50 | 1.852 | 500 | 18.519 |
Frequently Asked Questions
How many cubic feet are in a cubic yard?
There are exactly 27 cubic feet in one cubic yard. This comes from the fact that a yard is 3 feet, so when calculating volume (length × width × height), you multiply 3 × 3 × 3 = 27.
Why do contractors use cubic yards instead of cubic feet?
Cubic yards are the industry standard for bulk materials because the numbers are more manageable. For example, 270 cubic feet is easier to work with as 10 cubic yards when ordering concrete or gravel.
How do I calculate cubic feet for irregular shapes?
Break irregular shapes into smaller rectangles or triangles, calculate each section’s volume separately, then add them together. For curved areas, approximation or specialized formulas may be needed.
What’s the difference between square feet and cubic feet?
Square feet (ft²) measures area (length × width) while cubic feet (ft³) measures volume (length × width × height). You need depth or height to convert from square feet to cubic feet.
How much does a cubic yard weigh?
Weight varies by material. A cubic yard of topsoil weighs about 2,000 lbs, concrete about 4,000 lbs, and mulch around 400-800 lbs. Always check with your supplier for specific materials.
Can I convert square footage to cubic yards?
Yes, but you need to know the depth. Multiply square feet by depth (in feet) to get cubic feet, then divide by 27 to get cubic yards. Example: 100 ft² × 0.5 ft deep = 50 ft³ = 1.85 yd³.
How accurate should my measurements be?
For materials like concrete, measure within 1-2 inches accuracy. For landscaping materials, slightly overestimate by 5-10% to account for settling and uneven terrain.
What if my result has many decimal places?
For practical purposes, round to 2-3 decimal places. When ordering materials, round up slightly to avoid running short. Most suppliers work with quarter-yard increments (0.25 yd³).
Measurement Tips & Best Practices
Measuring Rectangular Spaces
Multiply length × width × depth (all in feet) to get cubic feet. Then divide by 27 for cubic yards.
Accounting for Compaction
Loose materials settle when compacted. Add 10-20% extra for gravel, 5-10% for soil, and 15-25% for mulch.
Converting Inches to Feet
Divide inches by 12. For example, 4 inches = 4÷12 = 0.333 feet. This is crucial for accurate depth measurements.
Waste Factor Planning
Always order 5-10% more material than calculated to account for spillage, uneven surfaces, and measurement variations.
Regional Usage Differences
While cubic feet and cubic yards are standard measurements in the United States, different regions have varying practices:
United States: Both units are widely used. Residential projects often measure in cubic feet, while commercial orders use cubic yards.
Canada: Officially uses metric (cubic meters), but cubic yards remain common in construction and landscaping, especially near the US border.
United Kingdom: Officially metric, though cubic yards still appear in older construction documents and some traditional industries.
Metric Equivalents
- 1 cubic foot = 0.0283 cubic meters
- 1 cubic yard = 0.7646 cubic meters
- 1 cubic meter = 35.315 cubic feet
- 1 cubic meter = 1.308 cubic yards
Cost Estimation Guide
Materials are typically priced per cubic yard. Converting accurately helps budget your project effectively.
| Material Type | Typical Price Range (per yd³) | Coverage Notes |
|---|---|---|
| Topsoil | $15 – $50 | Quality varies; screened costs more |
| Mulch (wood) | $20 – $60 | Color-treated options cost more |
| Gravel/Stone | $30 – $80 | Decorative stone costs more |
| Sand | $15 – $40 | Type affects price significantly |
| Concrete (ready-mix) | $125 – $150 | Delivery fees often apply |
| Compost | $25 – $70 | Organic certification increases cost |