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Driver Hours Compliance Calculator

Work out driver hours compliance instantly with clear inputs, formula shown and shareable results.

About Driver Hours Compliance Calculator

EU and UK drivers' hours rules cap daily driving at 9 hours (extendable to 10 twice a week) and weekly driving at 56 hours, with a 45 minute break required after 4.5 hours of driving. This models that structure so a schedule can be sanity-checked before dispatch.

Formula

Drivers' hours

daily limit 9 h (10 h twice weekly); 45 min break after 4.5 h driving; weekly limit 56 h

Worked example

With the default values below, Driver Hours Compliance Calculator returns Driving time remaining today of 0.50. Change any input above and every figure here is recalculated in your browser.

Inputs used

Driving time today
8.5 h
Driving this week
42 h
Break taken since the last driving period
30 min
Daily driving limit
9 h

Results

Driving time remaining today
0.50 h
Weekly driving remaining
14.00 h
Additional break required
15 min
Compliance status
Break required before further driving

Step by step

  1. 1Values used
  2. 2Drivers' hours
  3. 3Driving time remaining today= 0.50 h
  4. 4Weekly driving remaining= 14.00 h
  5. 5Additional break required= 15 min
  6. 6Compliance status= Break required before further driving

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax or fees or charges into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Can the break be split?

Yes, into 15 minutes then 30 minutes in that order. The reverse order does not satisfy the requirement.

What is the fortnightly limit?

90 hours across any two consecutive weeks, so a 56 hour week must be followed by no more than 34 hours.

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