ERP & MRP Planning calculator
Planned vs Actual Production Calculator
Planned vs Actual Production compares actual good output with the planned quantity for a shift, day, or week.
What this calculator does
- Calculate production variance between actual output and planned output.
- an operations manager needs to explain whether production beat or missed plan
- It shows whether actual production is above or below plan.
Formula used
- Production variance = actual good output - planned output
- Production variance percent = variance ÷ planned output reference × 100
Inputs explained
- Actual good production output: Use accepted units completed in the selected schedule bucket.
- Planned production output: Use the scheduled or ERP planned quantity for the same bucket.
- Planned output reference: Usually the planned quantity; use it as the denominator for variance percent.
How to use the result
- Use it during ERP cleanup, MRP review, production scheduling, S&OP prep, purchasing decisions, shortage meetings, capacity planning, or daily shop-floor execution reviews.
- This is a planning estimate. Confirm final commitments against current ERP/MRP records, released BOMs and routings, inventory accuracy, supplier commitments, open work orders, quality holds, and shop-floor constraints.
Common questions
- What is the Planned vs Actual Production calculator for? It shows whether actual production is above or below plan.
- What information do I need before using it? You need actual good output, planned output, and the reference quantity.
- How should I use the result? Use it to explain missed schedules, update recovery plans, and adjust future production commitments.
- When is the result only an estimate? It is only an estimate when demand, inventory, lead time, routing hours, setup time, yield, supplier dates, or work-center capacity comes from forecast assumptions or stale ERP data instead of current orders and recent execution history.
Last reviewed 2026-05-12.