Free tool

Billable hours & rounding calculator

Quickly convert your jobsite durations into clean, professional billable totals without the manual math.

Calculator

Billable hours & rounding

Enter each stop's actual time. Pick how you round, and your rate.

Stops (minutes)
Actual time—
Billable (rounded)—
Invoice total—

Embed this calculator on your site (free)

Copy this code into your website’s HTML to embed the calculator. The snippet includes a credit link, which you can style to match your site. 

<iframe src="https://tradestimer.com/embed/billable-hours-rounding-calculator" title="Billable hours & rounding calculator" width="100%" height="640" style="border:0;max-width:720px;" loading="lazy"></iframe>
<p style="font-size:0.85em;">Free <a href="https://tradestimer.com/tools/billable-hours-rounding-calculator">Billable hours & rounding calculator</a> by TradesTimer.</p>

The importance of consistent rounding

For solo tradespeople, billing in irregular increments (like 17 or 43 minutes) can look unprofessional and lead to payment disputes. Using a consistent rounding rule—such as rounding to the nearest 15-minute block—ensures your invoices are easy for clients to read and understand.

Apply your agreed rounding policy

Small gaps in billing add up over a week. By applying a standard rounding method to every stop, you ensure that the administrative overhead and small setup tasks at each jobsite are accounted for in your total billable time.

FAQ

Does this tool calculate my mileage?

No, this specific calculator is for labor hours only. Use the TradesTimer app to automatically log your trip distances for tax season.

What is a standard rounding increment?

Many professionals use 15-minute (0.25 hour) or 30-minute (0.5 hour) increments to keep billing simple and predictable.

Related

Last updated 2026-06-08. Estimates only — not tax or accounting advice.

Pricing

Five days to try it. Pro to keep tracking.

The upcoming paid release includes five days of tracking without payment details or automatic charges. Continue with Pro, including encrypted backup. Exports remain available after the trial.

Five-day trial
$0 for five days
No card required. Subscribe to continue.
  • Automatic stop and trip recording
  • Unlimited stops, drives, and days
  • Review and edit stops and trips
  • Rounded billable hours, exported as text or CSV
  • Travel log with estimated distances
  • 7-day summary view
  • History stored on your phone
Pro · App access with encrypted backup
US$6.99
/MO
or US$49.99/year (save 40%)
5-day app trial before subscribing; no card required

Canada: CA$9.99/month or CA$69.99/year. Both plans include the same features.

  • Continued automatic tracking and timeline review
  • End-to-end encrypted cloud backup
  • Restore your full history on a new phone
  • A backup stored separately from your phone

US prices are shown in USD; Canadian prices are shown in CAD. Your local App Store or Google Play price may differ. Subscriptions auto-renew until cancelled through the store where you purchased.