Days to Completion (for Budget) Calculator
Days = remaining budget / daily burn rate. Works backward from spend to project schedule.
Result
Workdays of budget left
20 workdays
~4.0 weeks · ~28 calendar days at 5/wk.
- Remaining budget$30,000
- Daily burn$1,500/day
- Workdays/week5
- Workdays of runway20
- Weeks of runway4.0
- Calendar days28
Step-by-step
- Workdays = ⌊budget / daily burn⌋ = ⌊30000 / 1500⌋ = 20.
- Weeks = 20 / 5 = 4.00.
- Calendar days = ⌈weeks × 7⌉ = 28.
How to use this calculator
- Enter budget remaining (not total — what's left).
- Estimate true daily burn from last 2 weeks of invoices.
- Pick crew's actual workdays per week.
- Compare workdays of runway to scope remaining.
About this calculator
When a project is mid-flight and overrunning, the question shifts from "what does it cost?" to "how long can we keep going?" Daily burn rate (labor + materials per active workday) divided into remaining budget gives a hard runway. Use this to decide whether to push through, pause for a fresh draw, or trim scope. Be honest about the burn rate — include subcontractor invoices arriving 30 days late, equipment rental, and any owner-paid materials. Runway shorter than the remaining scope = a hard conversation incoming.
Frequently asked
Last 14 calendar days: total spent / number of workdays in that window. Don't use early-project burn — it under-estimates.
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