Maintenance Calculator
DIY vs Shop Repair Calculator
Wrenching on it yourself can save real money — but your time isn't free. Compare the shop's bill to a DIY job and see your effective pay per hour.
The Job
Shop quote
Usually marked up over what you'd pay.
Doing it yourself
You Save Doing It Yourself
for 5 hours of your time
Shop Total
$710
DIY Total (cash)
$300
Your Effective Pay
$82/hr
Parts Markup Avoided
$80
Verdict
At this effective hourly rate, the DIY job pays well for your time — a clear win if you have the tools and confidence.
How it works.
Frequently asked questions.
How do I decide if a DIY job is worth it?
Look at the effective pay per hour. If doing it yourself nets you $80/hour and you enjoy the work, it's usually worth it. If the savings come to a few dollars an hour on a job you dread, paying the shop may be the better trade of money for time.
Should I count tools as a full cost?
Only the first time. Tools are a one-time purchase you keep for future jobs, so the true per-job tool cost drops toward zero after the first use. For a fairer long-run picture, spread tool cost across the jobs you'll realistically use them for.
What about the risk of doing it wrong?
Factor in the cost of a mistake for safety-critical work like brakes, steering, or airbags. If a botched repair could be dangerous or cost more to fix than you saved, that risk tilts the decision toward a professional even when the math favors DIY.