Process Capability Calculator
This tool helps you check how well your process is performing compared to quality standards. To start, paste up to 100 measurements. These are the numbers you got from your process or product checks. Then, set your acceptable limits, a target if you have one, and how you group your measurements using subgroups.
Individuals Chart & Limits
Results
Examples:
Product Industry (Bottled Water Manufacturer)
You run a bottled water company and want to measure the volume filled in each bottle. Your quality team measures the fill volume for 50 bottles and records these as measurements.
- LSL (Lower Specification Limit) = 490 ml - bottles filled less than this are defective.
- USL (Upper Specification Limit) = 510 ml - bottles filled above this waste product.
- Target = 500 ml - the optimal fill volume.
- Subgroup size = 5 - measurements are grouped in sets of 5 bottles to analyze machine consistency.
The calculator tells you how consistently your bottling machine fills bottles within quality limits.
Service Industry (Customer Support Call Center)
You manage a call center and want to improve average call handling time. Your team measures individual call durations (in seconds) for 100 calls over several days.
- LSL = 180 seconds - minimum expected time to fully assist customers.
- USL = 600 seconds - maximum time before customers wait too long.
- Target = 300 seconds - ideal average call duration.
- Subgroup size = 1 - each call is an individual measurement.
This analysis helps identify if your team meets handling time goals consistently or if improvements are needed.