Cycle Time Analyser — Free Time Study Tool for Lean Manufacturing
Lean Manufacturing · Cycle Time Analyser
Record time study observations using the stopwatch or manual entry. Statistical analysis removes outliers, calculates mean cycle time, and applies a rating factor and allowances to derive normal time and standard time — the foundation of capacity planning and takt time comparison.
Observed Time = Mean of readings
→
Normal Time = OT × (Rating ÷ 100)
→
Standard Time = NT × (1 + Allowance ÷ 100)
Standard time is the benchmark used in capacity planning. Compare it directly to your takt time — if standard time > takt time, the operation is a bottleneck.
0
observations
Sample Size
—
seconds
Mean Cycle Time
—
% CV
Consistency
—
seconds
Normal Time
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seconds
Standard Time
⏱ Stopwatch LIVE CAPTURE
0 readings captured
00:00.00
Press Start, then Record Lap each time the operation completes. Each lap is added as an observation.
Study Setup & Manual Entry OPERATION DETAILS
description of the task being timed
who or what is being studied
date of time study
100% = normal pace. 110% = 10% above normal
fatigue, personal, delay (typical 10–20%)
readings beyond threshold are flagged
recommended minimum observations
type a time and press Add or Enter
compare standard time against takt — set in TaktTime.html
📋 Observations
| # | Time (s) | Deviation from Mean | Relative | Status | Note | |
|---|---|---|---|---|---|---|
| No observations yet. Use the stopwatch above or enter times manually. | ||||||
📊 Distribution of Readings
Add observations to see distribution
📐 Descriptive Statistics
Sample size (n)—
Valid readings (after outliers)—
Outliers flagged—
Min—
Max—
Range—
Std Deviation (σ)—
Coeff. of Variation—
Mean Cycle Time—
🎯 Work Measurement
Observed Time (mean CT)—
Rating Factor—
Normal Time (OT × Rating)—
Allowance—
Standard Time—
Std Time (minutes)—
Output / hour (theoretical)—
Takt Time (reference)—
vs Takt (ST − Takt)—
📁 Saved Studies
No saved studies yet. Complete a study above and click Save Study.