What belongs in the setup and verification allowance?

Everything after cleaning before the first good unit: assembling and checking change parts, lining up the filler or labeler, and approving a first unit.

Why show the changeover in hours and minutes?

The headline reports hours because planners schedule shift time that way; the minute row is there for the line crew. At the defaults, 45 minutes is 0.75 hours.

How do I set the cleaning rate?

Time a real changeover from the last good unit of the previous run to the last cleaned component, then divide the component count by those minutes. Use a typical run, not the fastest.

Can a changeover miss the target and still fit the shift?

Yes. The target is a schedule goal, while the share of shift row shows what actually fits. At 50.4 minutes in a 480 minute shift the swap uses 10.5% of the shift and the margin row turns negative.

Personal Care, Cosmetics & Household Products calculator

Fragrance and Color Changeover Calculator

Estimate the time to flush and clean the line between a fragrance or color change, including setup and verification. The result is judged against the target time you enter and the share of the shift it uses.

What this calculator does

Changeover hours, minutes and shift share for a fragrance or color change, checked against a target time.

Formula used

Base cleaning minutes = components to flush and clean ÷ cleaning rate
Setup and verification minutes = base cleaning minutes × allowance ÷ 100
Changeover time = base cleaning minutes + setup and verification minutes; hours = minutes ÷ 60
Share of shift = changeover minutes ÷ shift length × 100
Margin to target = target changeover time − changeover minutes

Inputs explained

Components to Flush and Clean: Line components the fragrance or color change must clean.
Cleaning Rate: Components flushed and cleaned per minute on average.
Setup and Verification Allowance: Extra time for setup checks and first-unit verification.
Shift Length: Scheduled line minutes the changeover competes against.
Target Changeover Time: Changeover minutes the schedule allows; the warning limit.

How to use the result

Best suited to planning a changeover between shifts, setting a cleaning time target, scheduling a deep-tint change.
Two operators working in parallel can shorten clock time without cutting components. A single average cleaning rate hides the slowest component, so time a trial run.

Common questions

What belongs in the setup and verification allowance? Everything after cleaning before the first good unit: assembling and checking change parts, lining up the filler or labeler, and approving a first unit.
Why show the changeover in hours and minutes? The headline reports hours because planners schedule shift time that way; the minute row is there for the line crew. At the defaults, 45 minutes is 0.75 hours.
How do I set the cleaning rate? Time a real changeover from the last good unit of the previous run to the last cleaned component, then divide the component count by those minutes. Use a typical run, not the fastest.
Can a changeover miss the target and still fit the shift? Yes. The target is a schedule goal, while the share of shift row shows what actually fits. At 50.4 minutes in a 480 minute shift the swap uses 10.5% of the shift and the margin row turns negative.

Last reviewed 2026-10-01.