Purpose and scope
What this dashboard measures
Convert sprint length, team size, leave, and focus factor into delivery capacity. The result is designed to answer the planning question directly while preserving the assumptions needed to reproduce it.
Instructions
How to use this calculator
Enter sprint start, sprint length, team size, normal hours, total planned leave, and a delivery-focus percentage.
- Replace every example value with information from the schedule, agreement, journey, or system being modeled.
- Calculate and read the headline together with the supporting metrics. The visual output exposes sequencing that a single number can hide.
- Change one uncertain assumption at a time and compare the result before making a commitment.
Calculation
Method used
Weekday person-hours are calculated first, leave is removed, and the focus factor reserves capacity for meetings, support, and other non-delivery work.
The browser performs the calculation locally. No entered schedule or date information is submitted to CalcZero.
Worked scenario
Example calculation
Use the example to check the direction and scale of your own result. If the output differs sharply from a reasonable estimate, recheck units, offsets, inclusivity, and any value that crosses midnight.
Interpretation
Interpreting the headline metric
Use delivery hours for planning work, not gross attendance hours. Historical velocity remains the stronger guide when available.
- Save the input assumptions with any result shared outside the page.
- Read the full date and time whenever the calculation can cross midnight, a weekend, or a time-zone boundary.
- Use the visual schedule to locate handoffs, buffers, gaps, or deadline risk.
Visual audit
Reading the capacity dashboard
The headline compresses the model into one decision metric, while the supporting cards explain where it came from. Compare required and available values before relying on a percentage. Percentages can appear healthy while hiding a small but operationally important shortage, so retain the original units whenever the result is used for planning.
Boundaries
Important edge cases and limitations
Holidays, individual skills, part-time schedules, carryover, and unplanned support incidents require explicit adjustment.
A calculator can make timing arithmetic consistent, but it cannot infer missing policy language, operational constraints, or official exceptions. When the outcome affects employment, immigration, tax, contracts, health, or safety, confirm it with the governing source.
Practical use
Recommended workflow
Compare calculated capacity with the previous several sprints and choose the lower defensible commitment.
Keep the final result as a planning artifact rather than an isolated number. Record who supplied each assumption, when it was checked, and what event should trigger recalculation.
Continue with the preventive maintenance scheduler when the next timing decision is known. The production cycle timeline calculator provides a useful comparison when the assumptions change.
Input audit
Deadlines and projects planning checklist
- Locate the document or policy that creates the timing rule.
- Confirm whether dates are calendar days, business days, elapsed hours, or working hours.
- Record inclusivity, time zone, pauses, and exception rules.
- Set an internal action date earlier than the final modeled deadline.
Running this checklist before calculation prevents a precise answer from being built on the wrong calendar, rule, or source record.
Questions
Frequently asked questions
Is focus factor the same as productivity?
No. It represents the share of scheduled time available for planned delivery, not how efficiently people perform during that time.
How accurate is this calculator?
The arithmetic follows the displayed method, but accuracy depends on complete inputs and whether the simplified model matches the real rule. Holidays, individual skills, part-time schedules, carryover, and unplanned support incidents require explicit adjustment.
Can the result be used as an official deadline or schedule?
Use it as a documented planning estimate. Verify official deadlines, legal rules, contractual obligations, published schedules, and health or safety decisions with the controlling authority.