Daily Capacity Calculator

Find out how many productive hours you really have today. No signup required.

1.5h
1h
0.5h
3/5 -- Normal
15%

YOUR PRODUCTIVE CAPACITY

4 hours 15 minutes

of deep, focused work today

Total work hours8 hours
Meetings-1.5h
Breaks-1h
Admin / email-0.5h
Available hours5 hours
Buffer (15%) + energy (Normal)applied

DAY BREAKDOWN

Meetings Breaks Admin Productive Buffer

At ~25 minutes per Pomodoro session, that's about 10 focus sessions today.

Use our free Pomodoro timer

SettlTM does this automatically

SettlTM's Focus Pack calculates your daily capacity from your calendar events and configured work hours, then fits tasks within it -- so you never overcommit. AI scoring handles priority, urgency, and task age automatically.

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What is Daily Capacity Planning?

Daily capacity planning is the practice of calculating how many productive hours you realistically have in a day before you assign tasks to yourself. It accounts for fixed commitments (meetings, breaks, admin work) and variable factors (energy levels, unexpected interruptions) to give you a truthful picture of what you can accomplish.

Why most people overplan

An 8-hour workday does not contain 8 hours of productive time. Research consistently shows that knowledge workers average 3 to 4 hours of deep, focused work per day. The rest is consumed by meetings, context switching, email, Slack, and administrative overhead. When you plan as if you have 8 hours of output, every single day ends with unfinished tasks and the feeling of falling behind. This is not a discipline problem -- it is a math problem.

Tips for realistic planning

  1. Start by measuring, not guessing. Track your actual productive hours for one week before setting targets.
  2. Block meetings in clusters. Context switching between meetings and deep work costs 15 to 25 minutes each time.
  3. Always include a buffer. Unexpected tasks, urgent requests, and slow days are not exceptions -- they are the norm.
  4. Adjust for energy. Schedule your hardest work during your peak energy hours (for most people, the morning).
  5. Plan fewer tasks than you think you can handle. Finishing early feels better than carrying tasks over every single day.

Learn more about capacity-based planning in our glossary entry on daily capacity planning.

This calculator gives you a quick snapshot. For automatic, ongoing capacity planning that syncs with your calendar and adjusts as your day changes, try SettlTM.