PERT estimate calculator
Free PERT Estimate Calculator
Calculate a three-point PERT task estimate from optimistic, likely, and pessimistic minutes.
Three-point estimate
29 min Buffered plan: 37 min Likely range: 14 min to 44 minPERT estimate calculator for task planning
Use this three-point estimate calculator when one number feels too brittle. Enter optimistic, most likely, and pessimistic minutes to get a weighted expected duration, a simple buffer, and a likely planning range.
Copy the buffered estimate into micro.do, create an account for future sync and reminders, or review the ad-free plan.