Linear Feet Calculator
Enter the number of pieces and the length of each piece in feet and inches. The calculator converts the measurement and returns the total linear footage.
Fill in the required fields to see your result.
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The main result is total linear feet. Supporting outputs show the converted length per piece and total inches.
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How to Use This Calculator
Measure one piece from end to end. Enter the whole-foot portion and any remaining inches separately. Use quantity 1 when converting a single measurement.
Formula & Methodology
Length per piece equals feet plus inches divided by 12. Total linear feet equals the number of pieces multiplied by the length per piece.
Example: twelve boards measuring 8 ft 6 in
Twelve pieces at 8 feet 6 inches each equal 102 linear feet, or 1,224 total inches.
This calculator assumes every piece has the same length. It does not add cutting waste, kerf, overlaps, joints, trim allowances, or pieces with different dimensions.
Planning estimate only. Verify field measurements, product dimensions, waste allowances, and ordering requirements before purchasing materials.
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Related Guides
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Frequently Asked Questions
- What is a linear foot?
- A linear foot is a length measurement equal to 12 inches. It measures distance only, without including width, thickness, or area.
- How do I calculate linear feet?
- Convert each piece length to feet, then multiply by the number of pieces. Inches are converted to feet by dividing by 12.
- Does width affect linear footage?
- No. Linear footage measures length only. Width matters when calculating square footage, board feet, coverage, or material volume.
- Should I add waste?
- Add a project-specific allowance separately when cuts, joints, damaged pieces, pattern matching, or installation conditions create waste.
Last updated 7/21/2026