IP Institute of Printing

Processes Equipment Materials Tools & Calculators Standards

Production Calculator

PPI / Caliper Converter

Convert Pages Per Inch (PPI) to individual sheet caliper (mils) and vice versa.

Pages Per Inch (PPI)

Found on paper swatch books or mill specifications.

Formula: (2 ÷ PPI) × 1000 = Caliper in mils. (2 ÷ PPI) × 25.4 = Caliper in mm. Calculate (Fallback)

Sheet Caliper

Requires JS

IP Institute of Printing

The independent reference for modern print production, bridging the gap between design intent and industrial reality. We document processes, compare equipment, and provide the technical standards required for predictable output.

Reference

Offset Lithography
Flexography
Digital Toner
Press Comparison
Paper Specification

Tools

Spine Width Calculator
Cut Yield Estimator
PPI Calculator
Ink Coverage Estimator
CMYK Conversion Checker

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