Billable Hours Calculator
Enter your billable time for each day in hours and minutes. The calculator totals the week, converts it to decimal hours, and shows your billable percentage against the hours you worked. Add a weekly target to see how many billable hours you still need.
By the Best Therapy Productivity Calculator team · Last updated October 2026
How do you calculate billable hours?
- Add up billable minutes for each day.
- Total them for the week.
- Divide by 60 for decimal hours.
- Divide by hours worked and multiply by 100 for your billable percentage.
Worked example: outpatient PT week
| Day | Billable | Paid |
|---|---|---|
| Mon | 6 h 40 min (400 min) | 8 h |
| Tue | 6 h 32 min (392 min) | 8 h |
| Wed | 6 h 20 min (380 min) | 7 h 30 min |
| Thu | 6 h 55 min (415 min) | 8 h |
| Fri | 5 h (300 min) | 6 h |
| Week | 1,887 min = 31 h 27 min = 31.45 h | 37.5 h (2,250 min) |
- Billable percentage: 1,887 ÷ 2,250 = 83.9%
- A 32-hour weekly target needs 1,920 minutes: 33 minutes short (0.55 h)
How do you convert minutes to decimal hours?
Divide minutes by 60.
| Minutes | Decimal hours |
|---|---|
| 6 | 0.1 |
| 15 | 0.25 |
| 20 | 0.33 |
| 30 | 0.5 |
| 40 | 0.67 |
| 45 | 0.75 |
| 50 | 0.83 |
What is a good billable percentage?
There’s no one standard across professions. For therapists, the closest benchmark is a productivity target. ASHA’s 2025 survey found a median productivity requirement of 80% for SLPs across settings. For other fields, compare with your employer’s target or your own past weeks.
Can I estimate billed revenue?
If you enter an hourly rate, the calculator multiplies it by your decimal billable hours. This is only an estimate. Therapy billing usually depends on CPT codes, units and payer fee schedules, not a flat hourly rate.
Frequently asked questions
How many billable hours is 80% of a 40-hour week?
32 hours.
How do I count billable hours if I bill in units?
Add the minutes you actually spent, not the unit equivalents. See productivity vs billable time.
Are billable hours the same as hours worked?
No. Hours worked include non-billable time like documentation, meetings and travel.
Related: Weekly therapy productivity calculator · Weekly timesheet calculator · Productivity vs billable time