Calculadora de Cronograma de Projeto

Estime a duração total de um projeto com base nas tarefas, recursos disponíveis e dependências.

Total Effort (Hours)

hrs

Hours Available Per Week

hrs/week

Buffer for Unknowns

Weeks Needed

8 weeks

Months (approx)1.7 months

Total Hours (with buffer)144 hrs

Weeks Needed vs Total Effort (Hours)

Formula

Divide total effort by weekly available hours, then add a buffer for unknowns and scope changes.

Buffered Hours = Effort x (1 + Buffer %)

Weeks = Buffered Hours / Hours Per Week

120-hour project, working 20 hours/week, with 20% buffer.

How much buffer should I add?

10-20% for well-defined projects, 30-50% for projects with significant unknowns. Buffer absorbs scope creep, debugging, and unexpected delays.

Why use available hours instead of total work hours?

Not all work hours go to a single project. Account for meetings, email, admin, and other projects when estimating available time.

How do I estimate total effort hours?

Break the project into tasks, estimate each one, and sum them. Use past projects as benchmarks. When in doubt, triple your initial gut estimate.

Aprender

Calculate working days until a deadline.

Calculate your hourly rate.

Calculate total work hours.