Injection Molding calculator

Cushion Percentage Calculator

Calculate cushion percentage from remaining cushion and total shot stroke or volume. Two counts and a target give you a rate plus how far you are from where you need to be.

What this calculator does

  • Calculate cushion percentage from remaining cushion and total shot stroke or volume.
  • Use it when cushion percentage in injection molding needs a clean rate and gap-to-target you can put on a tier board.
  • Turns cushion percentage count, total cushion percentage population, target cushion percentage rate into a rate for cushion percentage in injection molding.

Formula used

  • Cushion percentage rate = cushion percentage count ÷ total cushion percentage population × 100
  • Cushion percentage gap to target = cushion percentage rate - target cushion percentage rate

Inputs explained

  • Cushion percentage count: Enter the number of defects, passes, claims, shortages, conforming units, or events being measured.
  • Total cushion percentage population: Use the matching inspected, produced, tested, shipped, sampled, or installed population for the same period.
  • Target cushion percentage rate: Enter the KPI, specification, contract target, quality target, or internal control limit.

How to use the result

  • Use it when cushion percentage in injection molding is being reviewed against a KPI.
  • Trend matters more than a single snapshot; pull the result for the last several periods before you act.

Common questions

  • Why use this cushion percentage tool for injection molding? Calculate cushion percentage from remaining cushion and total shot stroke or volume. You get a rate you can defend before quoting, scheduling, or sign-off.
  • Which assumptions drive the rate? cushion percentage count, total cushion percentage population, target cushion percentage rate usually move the rate most. Pull from measured injection molding runs, supplier data, and recent quotes rather than memory.
  • How should I act on the output? Use the gap to target to prioritize the next injection molding kaizen or corrective action.
  • What should I double-check before acting? Confirm the counts came from the same time window and the same scope; mismatched scope is the most common error.

Last reviewed 2026-05-12.