This calculator computes Total time worked and a Perfect end time from your Start Time, Billable (Therapy) Minutes, and Productivity %, then adds unpaid lunch minutes after the computed end time. No login. Lightweight client-side calculation. See Privacy for analytics/ads.
Productivity Calculator With Lunch Break
Enter your start time, billable therapy minutes, and productivity target to get Total time worked and a Perfect end time, then add an unpaid lunch break.
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This break is added after the computed end time (unpaid breaks don't count toward worked time). If your lunch is paid, leave this at 0.
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Total time worked: |
End time including lunch is |
| Lunch added: 0 minutes |
Total time worked includes billable and non-billable time. Unpaid breaks (like lunch) don't count toward worked time, so we add them after the computed end time.
For therapists with productivity targets: enter billable therapy minutes and productivity target to compute your allowable end time, then add unpaid breaks for your full day.
About this calculator
How the calculation works (formula & example)
This calculator takes your Start Time, your Billable (Therapy) Minutes, a target Productivity %, and an optional Lunch / unpaid break, then computes your Total Time Worked and your Perfect end time.
Formula
- Billable minutes = the minutes of therapy you must complete (this is your input).
- Productivity % = Billable minutes ÷ Total time worked × 100.
- Total time worked = Billable minutes ÷ (Productivity % ÷ 100).
- Perfect end time = Start time + Total time worked.
- End time including lunch = Perfect end time + Lunch minutes.
Notes: "Total time worked" includes both billable and non-billable time (documentation, transitions, etc.). Unpaid breaks (like lunch) are added after the computed end time.
Example
- Start time: 8:00 AM
- Billable (therapy) minutes: 306
- Productivity target: 85%
- Lunch minutes: 30
- Total time worked: 306 ÷ 0.85 = 360 minutes (6 hours 0 minutes)
- Perfect end time: 8:00 AM + 6 hr 0 min = 2:00 PM
- End time including lunch: 2:00 PM + 30 min = 2:30 PM
Calculations are minute-precise. If a decimal minute occurs, the fractional part is truncated (rounded down) so the computed end time may be slightly earlier than the exact target.
Frequently Asked Questions
Should lunch be included in productivity?
No. Productivity is based on billable minutes versus total time worked. Unpaid lunch does not count toward worked time, so it is added after the computed end time.
What if my lunch is paid?
If lunch is paid, it counts toward worked time. Leave the lunch field at 0 and use your normal productivity target.
What about two short breaks?
Add them together in the lunch field if they are unpaid, or leave them out if they are paid.
Does lunch change my productivity %?
No. The productivity % is still calculated from billable minutes and total time worked. Lunch is added after the perfect end time.
Why does the end time move later when I add lunch?
Lunch is time you are away from billable and non-billable work, so it extends your day without changing the work minutes.
Can I use this for non-therapy roles?
Yes. The math works for any role that uses billable minutes and a productivity target.
Do you store my data?
No personal data is stored by the calculator. See the Privacy page for analytics/ads disclosures.
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