Calculator Form
Example Data Table
| Scenario | Shift Minutes | Breaks | Downtime | Demand | Run Time | Efficiency | Pitch Qty |
|---|---|---|---|---|---|---|---|
| Assembly Cell | 480 | 60 | 15 | 420 | 55 sec | 90% | 20 |
| Packing Line | 450 | 45 | 20 | 600 | 31 sec | 88% | 25 |
| Fabrication Area | 540 | 75 | 30 | 180 | 130 sec | 92% | 10 |
Formula Used
Net available time = Shift length - Planned breaks - Expected downtime.
Takt time = Net available seconds / Customer demand units.
Effective run time = Run time per unit / Efficiency decimal.
Pitch time = Takt time × Pitch quantity.
Pitches per shift = Customer demand / Pitch quantity.
Required operators = Effective run time / Takt time.
Capacity = Net available seconds × Operators / Effective run time.
Utilization = Required started units × Effective run time / Operator available seconds × 100.
How to Use This Calculator
Enter total shift length in minutes. Subtract planned breaks and expected downtime. Add customer demand for the same shift or day. Enter the measured run time per unit in seconds. Add expected efficiency, pitch quantity, operator count, and scrap allowance. Press the calculate button. Read takt time first. Then compare it with effective run time. Use pitch time to set check intervals. Download the result when you need a shared record.
Lean Rhythm for Daily Work
Takt, run time, and pitch connect customer demand with shop floor action. They turn a daily number into a repeatable working rhythm. A team can see how often a unit should leave the process. It can also see whether the present cycle is fast enough.
Why Takt Matters
Takt time is not a machine speed. It is a demand pace. It divides net available work time by required output. When demand rises, takt gets shorter. When available time drops, takt also gets shorter. The result helps leaders set realistic targets before work begins.
Understanding Run Time
Run time shows how long one unit takes at the process. The calculator adjusts it with efficiency. This gives a practical cycle value. A perfect cycle can look safe on paper. A corrected run time often shows the true capacity risk.
Using Pitch for Control
Pitch groups units into a visible management interval. It is often linked to a container, batch, kanban card, or planned release. If takt is one minute and pitch quantity is twenty, the pitch is twenty minutes. Teams can check progress each pitch instead of waiting until shift end.
Planning Capacity
The calculator compares effective run time with takt time. It also uses operator count to estimate capacity. If the process needs more labor than assigned, the warning appears early. This supports staffing, balancing, overtime planning, and problem solving.
Improving Flow
Use the result during daily planning. Review breaks, meetings, scrap, downtime, and real cycle data. Small changes can alter the target. A clear takt target helps supervisors balance stations. A clear pitch target helps teams track completion. Together, both numbers make production control easier.
Practical Decisions
The best result is not only a number. It is a decision signal. If utilization is too high, add capacity or reduce waste. If capacity is much higher than demand, review staffing or level the schedule. Recalculate when demand, shift length, or cycle time changes.
Common Review Habit
Review the numbers at the start of each shift. Compare planned pitch completions with actual completions. Record the reason for each miss. Over time, these notes expose repeat delays and guide focused improvements without guessing for faster daily team response.
FAQs
What is takt time?
Takt time is the available production time divided by customer demand. It shows how often one good unit should be completed to match demand.
What is run time?
Run time is the measured time needed to produce one unit. This calculator adjusts it with efficiency to give a more practical planning value.
What is pitch in lean planning?
Pitch is a management interval. It groups several units together, often by container, batch, or kanban quantity, so progress can be checked regularly.
Should breaks be included in available time?
No. Planned breaks should be removed from shift time. Takt should use only the time truly available for production work.
Why does scrap percent change the result?
Scrap means more units must be started to deliver the required good units. Higher scrap increases load and reduces available capacity margin.
What does required operators mean?
Required operators compares effective run time with takt time. It estimates how many operators are needed to meet the demand pace.
Can I use this for service work?
Yes. Replace units with jobs, orders, tickets, or cases. Use available work time and demand for the same planning period.
When should I recalculate?
Recalculate when demand, shift length, downtime, staffing, run time, efficiency, scrap, or pitch quantity changes. Current data gives better planning signals.