Line Balancing Calculator
Work out the minimum workstations, line efficiency and balance delay for your assembly line from total task time, available time and demand.
Your line balance
How to balance a production line
Line balancing distributes work as evenly as possible across stations so each keeps pace with demand. Start with takt time, then size the line:
Takt time = Available time ÷ DemandMinimum workstations = Total task time ÷ Takt time (round up)
With the actual number of stations, measure how well-balanced it is:
Line efficiency = Total task time ÷ (Stations × Takt time)Balance delay = 100% − Line efficiency
Why balance matters
An unbalanced line piles work on one or two stations while others sit idle. Those overloaded stations become bottlenecks, and the idle time is pure lost capacity — that's what balance delay measures. Improving balance often unlocks throughput with no new equipment.
From one line to every scenario
This calculator assumes a single product and clean numbers. Real lines have product mix, variable task times, downtime and shared resources. ManuMap models all of that across the whole line — so you can test rebalancing scenarios and see the throughput and payback before you move anyone.
FAQ
How do you calculate the number of workstations?
Divide total task time by takt time and round up. Takt time = available production time ÷ demand.
How is line efficiency calculated?
Line efficiency = total task time ÷ (number of workstations × takt time), as a percentage. Balance delay is 100% minus that.
What is balance delay?
The share of total line time lost to idle time because work isn't evenly spread across stations. Lower is better.