Team Time Estimator

1. Count comparable work items
Enter the volume covered by the estimate.

2. Estimate effort per item
Use average active hours for one item before team overhead.

3. Enter team size
Count people who can contribute in parallel.

4. Set productive daily hours
Use focused delivery time per person, excluding routine interruptions.

5. Add coordination overhead
Account for communication, reviews, handoffs, and integration work.

6. Review elapsed days
Use the main result as a rough parallel-work estimate.

Base effort = Work items × Hours per item Adjusted effort = Base effort × (1 + Overhead rate) Estimated days = Adjusted effort ÷ (Team members × Productive hours per person per day)

The model assumes work is divisible and team members contribute at comparable productive rates.

What the result means

Estimated working days represent elapsed team time under the entered parallel-capacity and overhead assumptions.

Sequential tasks, uneven skills, review queues, or resource conflicts can extend the schedule.

Given: 120 items, 1.5 hours each, 5 team members, 6 productive hours per day, and 15% overhead.

Calculation: Base effort = 120 × 1.5 = 180 hours. Adjusted effort = 180 × 1.15 = 207 hours. Team daily capacity = 5 × 6 = 30 hours. Duration = 207 ÷ 30 = 6.9 working days.

Result: The team needs about 6.90 working days, with 41.4 adjusted hours per person.