How to calculate productivity when travel eats your day
Windshield time sets a ceiling before you treat anyone.
Productivity with travel time is worked out after the travel minutes come off your paid minutes. What is left is the highest percentage you can reach that day, before documentation or anything else.
Travel between patients or buildings is time you work and almost never time you bill. Windshield time is the home health name for it.
The ceiling calculation
Maximum productivity = (paid minutes − travel minutes) ÷ paid minutes × 100
The table assumes a 450-minute paid day, which is eight hours with a 30-minute unpaid lunch.
| Daily travel | Ceiling on a 450-minute day | After 45 minutes of notes |
|---|---|---|
| 30 minutes | 93.3% | 83.3% |
| 60 minutes | 86.7% | 76.7% |
| 90 minutes | 80.0% | 70.0% |
| 120 minutes | 73.3% | 63.3% |
| 150 minutes | 66.7% | 56.7% |
Ninety minutes of driving and forty-five minutes of documentation cap you at 70%. If the target is 85%, the target and the territory don't fit, and no change to the order of the day fixes that. The therapist productivity calculator shows the same result for your own minutes.
Which travel is paid, and does it count?
These are two separate questions. In the US, travel from one patient to the next during the workday counts as hours worked for non-exempt employees. The normal drive from home to the first patient, and from the last patient home, does not, even when the job sites change every day. Other countries have their own rules, and your contract and employer decide how you are paid.
Whether paid travel counts toward productivity is the second question, and your employer's formula answers it. Where travel is paid but not credited, it sits in the denominator and adds nothing to the numerator.
Measuring your own windshield time
Record door to door, from leaving one patient to arriving at the next, including parking and finding the entrance. Ten working days give a usable average. Parking and walking to the door are easy to leave out, because they don't feel like driving.
Average travel per visit = total travel minutes ÷ visits
Six visits with 95 minutes of travel is 15.8 minutes per visit. That is the number that lets you compare territories or agencies.
Converting a points target into hours
Some home health agencies measure in points, not percentages, and points hide the travel. Each agency sets its own point values, not Medicare. This example uses the one in the home health productivity points guide: a routine visit is 1 point and about 45 minutes in the home.
Real day length = routine visits × (visit minutes + travel minutes + documentation minutes)
Six points a day from six routine visits, with 16 minutes of travel and 12 minutes of documentation per visit:
- Per visit: 45 + 16 + 12 = 73 minutes
- Six visits: 6 × 73 = 438 minutes = 7 hours 18 minutes
Add 42 minutes for a start-of-day routine and an end-of-day sync, and the six-point day is 480 minutes, or eight hours. If the agency describes it as a 7.5-hour role, the half-hour gap is where evening documentation comes from. A territory with longer drives or longer notes makes the day longer still. The home health points calculator turns a weekly points target into hours with your own values.
Comparing a travel role with a facility role
Put both on the same basis, which is billable minutes per hour worked. The outpatient column assumes an 85% target on a 450-minute paid day, rounded to 383 minutes.
| Home health, 6 points | Outpatient, 450-minute day | |
|---|---|---|
| Billable minutes | 270 | 383 |
| Real minutes worked | 480 | 450 |
| Billable minutes per hour worked | 33.8 | 51.1 |
The home health day produces less billable time across a longer day. That doesn't make it the worse job, because pay per visit, autonomy and control of your schedule all matter. It does mean that comparing the two roles' percentages directly tells you little without this conversion.
Reducing windshield time
Three changes reduce travel between patients.
- Cluster visits by geography, so each day covers one part of the territory.
- Put patients in the same building or on the same street on the same day.
- Schedule the furthest visit first or last, where policy allows.
The third change has a cost. In the US, the drive to the first patient and home from the last is normally commute time, which does not count as hours worked. Moving the long drive to either end can turn paid travel into unpaid time.
Clustering that cuts average travel from 22 minutes to 14 across six visits saves 8 × 6 = 48 minutes a day. Over an assumed 46 working weeks of five days, that is 48 × 5 × 46 = 11,040 minutes, or 184 hours. That is 4.6 forty-hour weeks a year.
A smaller saving still adds up. Cutting 90 minutes of daily driving to 65 saves 25 minutes a day. Over the same 46 weeks that is 25 × 5 × 46 = 5,750 minutes, or 95.8 hours, which is 2.4 forty-hour weeks.
Making the case to an agency
Allocating visits by availability is easier to schedule. Allocating them by geography saves drive time, and that is a productivity calculation the agency can check.
Present it as capacity. Recovering 48 minutes a day covers the 45 minutes in the home of one more routine visit. It isn't quite a whole visit, which takes 73 minutes in the example above once its drive and note are counted. Across a team of ten that is 480 minutes a day without hiring anyone.
The question to ask before accepting a territory
Ask for the average drive time between visits in that territory, not the mileage. A mile in a city and a mile on rural roads take different amounts of time, and time is what the calculation needs.
An agency that tracks drive time can answer straight away. If it offers mileage instead, it may not have measured the time, which is worth knowing before you accept the territory.
Travel therapy, meaning short contracts at different facilities, is a separate subject with its own guide: travel therapy productivity.
This is general information, not employment, legal or pay advice. Your employer's policy, your contract and the law where you work decide which travel is paid.