Quote the job. See what you actually take home per hour. Free, no signup.
Quoting book hours while living actual hours is how mobile mechanics donate time. Start with the Common jobs presets (brake pads 1.5h, alternator 1.5h, starter 1.0h, battery 0.5h, belt 1.0h): these are typical starting points, not official guide times, so confirm them against your own labor guide and edit freely. Set your labor rate (presets: $75, $100, $125, $150), then enter the book hours you will quote, your actual wrench hours, and your travel plus setup minutes, which the tool treats as unbilled. Add parts cost, parts markup percent, and any diagnostic fee. The quote breakdown shows labor, parts with markup, and the diagnostic fee as the customer sees them, then the number that matters: your effective take-home per hour. That is your margin (labor revenue plus parts markup plus diagnostic fee, with parts cost passing through) divided by your total committed time, meaning actual wrench hours plus travel and setup. The verdict compares it to your rate: BEATING YOUR RATE, CLOSE BUT LEAKING TIME (80 percent or more of your rate), or EATING TIME. Planning estimate only.
Example only, not typical earnings. Brake pads: you quote 1.5 book hours at $100/hr = $150 labor. Parts cost $120 with a 25% markup = $150 on the quote. A $50 diagnostic fee brings the customer quote to $350. You keep the labor ($150), the markup ($30), and the diagnostic ($50) = $230 after parts cost passes through. The job takes 2 actual wrench hours plus 45 minutes of travel and setup, so 2.75 committed hours. Your effective rate is $230 / 2.75 = $83.64/hr, which is 83.6% of your $100 rate: CLOSE BUT LEAKING TIME. You committed 1.25 hours you never billed.