Packing Tape Roll Calculator
Enter each box size, seam count, passes, extra tape, item quantity and waste yourself. Tape metres = ((L×seamsL + W×seamsW + H×seamsH)×passes + extra)×quantity×(1+waste/100), after exact unit conversion. Total rolls = ceiling(total metres / usable metres per roll). Waste is an allowance, not a measured loss. No seam pattern or tape preset is assumed.
Packing Tape Roll Calculator
Enter each box size, seam count, passes, extra tape, item quantity and waste yourself. Tape metres = ((L×seamsL + W×seamsW + H×seamsH)×passes + extra)×quantity×(1+waste/100), after exact unit conversion. Total rolls = ceiling(total metres / usable metres per roll). Waste is an allowance, not a measured loss. No seam pattern or tape preset is assumed.
Exact fractions preserve full precision. Decimal input only; no scientific notation. All processing is local. Blank fields are not zero.
Fixed full report
A QUICK WALKTHROUGH
How to use this tool
- Name all scenarios and enter all rows.
- Review units and declared assumptions.
- Calculate, inspect every contribution and difference, then copy or download the report.
Parsed inputs and units
Enter each box size, seam count, passes, extra tape, item quantity and waste yourself. Tape metres = ((L×seamsL + W×seamsW + H×seamsH)×passes + extra)×quantity×(1+waste/100), after exact unit conversion. Total rolls = ceiling(total metres / usable metres per roll). Waste is an allowance, not a measured loss. No seam pattern or tape preset is assumed.
Fixed full report
Exact fractions preserve full precision. Decimal input only; no scientific notation. All processing is local. Blank fields are not zero.
GOOD TO KNOW
Common questions
Parsed inputs and units?
Enter each box size, seam count, passes, extra tape, item quantity and waste yourself. Tape metres = ((L×seamsL + W×seamsW + H×seamsH)×passes + extra)×quantity×(1+waste/100), after exact unit conversion. Total rolls = ceiling(total metres / usable metres per roll). Waste is an allowance, not a measured loss. No seam pattern or tape preset is assumed.
Fixed full report?
Exact fractions preserve full precision. Decimal input only; no scientific notation. All processing is local. Blank fields are not zero. Invalid input. Complete every row; use nonnegative ordinary decimals, valid units and required positive values. Max 10 scenarios, 100 rows each, 80 digits per value; names and provenance max 500 characters.