What is takt time?
Takt time (from the German Takt, the beat of a conductor's baton) is the heartbeat of a lean production line: how often one finished unit must leave the line to match customer demand exactly. Producing faster than takt builds inventory (overproduction); producing slower misses deliveries. Takt time connects the whole line to the customer and is the reference for line balancing, standard work and value stream mapping.
The takt time formula
Takt time = net available working time ÷ customer demand
| Term | Meaning |
|---|---|
| Net available time | (Shift length − breaks − planned downtime) × shifts per day |
| Customer demand | Units the customer needs in the same period (convert weekly or monthly demand to a daily figure) |
| Planned cycle time | Takt time × target efficiency, to leave room for losses |
| Theoretical operators | Sum of manual cycle times ÷ takt time, rounded up |
Takt time example
A pump assembly line runs two 480-minute shifts with 40 minutes of breaks and 10 minutes of planned downtime per shift: 860 minutes (51,600 seconds) a day. Demand is 2,000 pumps a week over 5 days, or 400 a day. Takt time = 51,600 ÷ 400 = 129 seconds. Planned at 90% of takt, the line should run at 116 seconds. The seal install step takes 134 seconds, above takt, so the line can only make about 385 pumps a day. The total work content of 644 seconds needs at least 644 ÷ 129 = 5 operators.
How to use takt time
- Find bottlenecks: any step above takt is a constraint; split its work or reduce its cycle time.
- Size the crew: recalculate takt when demand changes, then rebalance and re-staff.
- Pace the line: show takt and actual output by hour on a visual management board.
- Measure the real cycle time: use a time study rather than estimates.
- Do not chase takt with overtime: recurring overtime means cycle times are above takt or losses are too high; check OEE.
How to use this Takt Time Calculator tool
- Enter available time. Enter the shift length, number of shifts per day, breaks and other planned downtime per shift.
- Enter customer demand. Enter the demand and its period (day, week or month) with the working days in that period.
- Read the takt time. The tool calculates takt time, output per hour and the planned cycle time if you run below 100%.
- Add the process steps. Click a bar or + to add each step with its cycle time. Steps over takt turn red.
- Check the crew and the risk. See the theoretical number of operators and how takt changes if demand rises or falls.
- Export. Export the takt analysis to PDF or Excel for line design or capacity planning.
Frequently asked questions
What is takt time?
Takt time is the rate at which you must complete a product to meet customer demand: available working time divided by customer demand. If a line has 860 minutes a day and customers need 400 units a day, the takt time is 129 seconds: one unit must come off the line every 129 seconds.
How do you calculate takt time?
Takt time = net available working time ÷ customer demand in the same period. Net available time is the shift length minus breaks and other planned downtime, multiplied by the number of shifts. Express it in seconds per unit.
What is the difference between takt time and cycle time?
Takt time is set by the customer: the pace you need. Cycle time is set by the process: how long a step actually takes to complete one unit. Every step's cycle time must be at or below takt time, or the line cannot meet demand without overtime.
What is planned cycle time?
Planned cycle time is takt time reduced to leave room for losses such as downtime, changeovers and scrap, for example 90% of takt. Many companies balance lines to the planned cycle time instead of takt, so normal losses do not cause missed shipments.
How many operators do I need?
The theoretical minimum number of operators is the total work content (sum of manual cycle times) divided by takt time, rounded up. Achieving it requires the work to be balanced evenly between operators; use the line balancing tool for that.
Does takt time include breaks?
No. Takt time uses net available time: breaks, lunch, meetings and planned maintenance are removed first. Unplanned downtime is not removed; it is a loss the process must absorb, which is why planned cycle time is set below takt.