Enter the total driving hours, supervised driving hours, professional driving hours, and L plate hours into the calculator to determine the missing variable.

L Plate Hours Calculator

Progress & Credits
Requirements & Remaining
Finish-By-Date Plan

Select your location and log what you’ve already done. We apply any eligible instructor/course credits.

Info: Typical minimums by location (as of Nov 2025): NSW 120 total incl 20 night; VIC 120 incl 20 night; QLD 100 incl 10 night; WA 50 incl 5 night; SA 75 incl 15 night; TAS 80 incl 15 night; ACT 100 incl 10 night if under 25, or 50 incl 5 night if 25+; NT has no mandated logbook hours. Instructor credits: NSW/QLD/ACT 3-for-1 up to 10 lessons (extra +20); TAS 2-for-1 up to +20 from 10 lessons; SA 3-for-1 limited to +10 extra (about five lessons); rules on night lessons vary by state. Always check your state site before testing.

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L Plate Hours Formula

The following formula is used to calculate the L plate hours for a given set of driving hours. 

T = S + P + L

Variables:

  • T is the total driving hours
  • S is the supervised driving hours
  • P is the professional driving hours
  • L is the L plate hours

To calculate the L plate hours, subtract the supervised driving hours and professional driving hours from the total driving hours.

What are L Plate Hours?

L plate hours refer to the hours of driving practice that a learner driver (L plater) accumulates while driving under supervision. These hours are part of the requirements for obtaining a full driving license. The L plate hours are typically a combination of supervised driving hours, professional driving hours, and independent driving practice. The goal is to ensure that the learner driver gains sufficient experience and skills to drive safely and confidently on the road.

How to Calculate L Plate Hours?

The following steps outline how to calculate the L Plate Hours.

  1. First, determine the total driving hours (T).
  2. Next, determine the supervised driving hours (S).
  3. Next, determine the professional driving hours (P).
  4. Finally, calculate the L plate hours using the formula L = T – S – P.
  5. After inserting the values and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Total driving hours (T) = 120 hours

Supervised driving hours (S) = 50 hours

Professional driving hours (P) = 20 hours

L plate hours (L) = 50 hours