• Conversion Tools

    While there are many conversion tools in the market, Adchem offers a tape specific system allowing the user to quickly convert standard measurements used in the tape industry. Most people find the roll length calculator to be extremely helpful to assess remaining roll length. New tools are added each year with the latest being a roll weight calculator for each product. Bookmark this url as you will find continuing need for Adchem’s Conversion Toolkit.

Conversion Toolbox

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Calculator Tools

Roll Diameter / Length Calculator

Roll Diameter(inches)
Core Diameter
Tape Thickness (mils)
Roll Length (yards)

Note: The above theoretical calculation for roll diameter is based on the assumption that the roll is uniformly and tightly wound.

Note: The calculated roll diameter may vary from actual values.

Conversion Tools

Fraction/Decimal Conversion


Note: This calculator only computes a fraction with a factor of 1/64.