A CFT Calculator, or Cubic Feet Calculator, helps you determine volume by multiplying length × width × height. It’s a versatile tool for interior design, shipping estimates, DIY projects, landscaping, and more—accepting measurements in feet, inches, yards, or metric units.
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🔍 What Is a Cubic Foot?
A cubic foot (ft³ or CFT) is the volume of a cube with 1-foot sides. It measures three-dimensional spaces, useful in:
- Storage sizing
- Furniture fitting
- Soil, mulch, or gravel orders
- Parcel shipping (turn0search5, turn0search17)
🧮 How It Works: The Formula
Volume (ft³) = Length × Width × Height
Ensure all measurements are in feet before multiplying (turn0search0, turn0search3, turn0search8).
- For inches: divide each by 12 or compute volume then divide by 1,728 (turn0search2, turn0search5, turn0search17).
- For yards: multiply each measurement by 3 (turn0search4, turn0search7, turn0search17).
- For cm/m: convert using known factors—cm ÷ 30.48, m × 3.28 (turn0search4, turn0search7, turn0search5, turn0search11).
Online calculators support selecting units directly, auto-converting internally (turn0search3, turn0search11, turn0search17).
🛠️ Example: Parcel Volume
Box size: 12″ × 6″ × 12″
- Method A: Convert to ft → 1′ × 0.5′ × 1′ = 0.5 ft³
- Method B: Compute in in³: 864 in³ ÷ 1,728 = 0.5 ft³ (turn0search2, turn0search11, turn0search17)
🏗️ Example: Cubic Yards to Feet
Garden area: 10 yd × 3 yd, depth 0.5 yd
Volume = 30 yd² × 0.5 yd = 15 yd³
In cubic feet: 15 × 27 = 405 ft³ (turn0search5, turn0search7, turn0search11)
⚙️ Why Use It?
- Shipping logistics: Many carriers bill based on volume for light but large parcels (turn0search2, turn0search14).
- Landscaping & materials: Estimate mulch or soil accurately (turn0search5, turn0search12).
- Interior planning: Ensures furniture fits or fridge volume meets needs (turn0search0, turn0search3, turn0search5).
- Construction & industry: Architects, engineers, contractors regularly use cubic feet vols (turn0search0, turn0search12, turn0search16).
🔄 Unit Conversions Table
From | Convert to ft³ | Method |
---|---|---|
Inches | ÷ 1,728 | via cubic inches (turn0search5, turn0search17) |
Yards | × 27 | via yd³ (turn0search5, turn0search7, turn0search11) |
cm | ÷ 28,316.8 | via cm³ (turn0search4, turn0search11) |
m | × 35.315 | via m³ (turn0search5, turn0search11) |
🔄 Irregular Shapes
Divide shapes into multiple rectangular parts, calculate each volume, then sum (turn0search0, turn0search3, turn0search9).
✅ 20 FAQs – Cubic Feet Calculator
- What is ft³?
Cubic foot: volume of a 1′ × 1′ × 1′ cube. - Formula?
Length × width × height—all in feet (turn0search0, turn0search3). - Inches to ft³?
Divide volume in in³ by 1,728. - Yards to ft³?
Multiply yd³ by 27. - Meters?
Compute m³ × 35.315. - cm?
cm³ ÷ 28,316.8. - Mixed units?
Convert each to feet before calculating. - Why calculate ft³?
For shipping, materials, construction, fit planning. - Irregular volumes?
Break into rectangles and sum volumes. - Can it handle cylinders?
Not directly—need formula πr²h in ft. - Is ft³ same as CFT?
Yes, cubic feet often abbreviated CFT. - Volume vs area?
Area is 2D; volume uses 3D measurements. - Input accuracy?
Important—errors multiply in 3D. - Why convert before vs after?
Before reduces rounding; after is quicker for uniform units. - Can calculators auto-convert?
Yes—online tools support multiple units (turn0search3, turn0search11, turn0search17). - Use in moving?
Yes—helps select correct truck/container size (turn0search14). - Can I estimate water volume?
Yes—volume of tank via ft³ × 7.48 = gallons, but ft³ is still volume. - Is ft³ global?
Imperial unit—others use m³, L, etc. - Fit in trunk?
Yes—helps check volume before purchase. - Material costing?
By knowing ft³, estimate costs per cubic foot.
⚙️ Quick DIY Steps
- Measure in feet or convert.
- Multiply length × width × height.
- Sum parts for complex shapes.
- Convert units using ratio table.
- Use an online tool for speed and precision.
🧭 Final Takeaway
A CFT Calculator simplifies volume measurement, whether you’re shipping boxes, buying materials, or planning layouts. Use consistent units, apply the basic formula, convert accurately, and check irregular shapes by summation. Whether you prefer manual calculations or trusted online tools, this guide ensures your volume estimates are precise, reliable, and ready for practical application.