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Both calculators run independently β€” change the inputs on either side to compare results.

Project Management

Critical Path Duration Calculator

Sum the durations of three sequential tasks to estimate critical-path duration. Use it for very simple linear project sizing or as an introduction to the critical-path concept β€” for real projects with branching dependencies, use proper CPM software.

Fill in the required fields to see your result.
Project Management

Resource Utilization Calculator

Calculate resource utilization as the percentage of available hours actually allocated to project work. Use it to identify under- or over-utilization of staff, balance workloads, and optimize team capacity planning.

Fill in the required fields to see your result.

Key differences

Critical Path Duration CalculatorResource Utilization Calculator
CategoryProject ManagementProject Management
Inputs required32
ResultCritical Path Duration (days)Resource Utilization (%)
What it doesSum the durations of three sequential tasks to estimate critical-path duration. Use it for very simple linear project sizing or as an introduction to the critical-path concept β€” for real projects with branching dependencies, use proper CPM software.Calculate resource utilization as the percentage of available hours actually allocated to project work. Use it to identify under- or over-utilization of staff, balance workloads, and optimize team capacity planning.