HGV WTD Calculator UK – Essential 5-Step Working Time Tool
HGV WTD Calculator UK for Working Time Directive Compliance
HGV WTD Calculator UK is a professional working time tool for HGV drivers, LGV drivers, transport managers and fleet operators who need to understand daily working time, weekly totals, reference-period averages, night work limits and WTD break rules.
The HGV WTD Calculator UK is different from a simple driving-hours calculator. Tachograph rules mainly focus on driving, breaks from driving and rest periods. WTD rules focus on total working time. This includes driving, loading, unloading, vehicle checks, paperwork, cleaning, yard duties, customer-site duties and other work where the driver is required to be available for work.
Many professional drivers make the mistake of thinking they are compliant because their driving time is legal. In reality, a driver can follow tachograph driving limits correctly and still breach the Working Time Directive if their total working time is too high. This is why the HGV WTD Calculator UK is useful for checking the full working pattern, not only driving hours.
Under UK road transport working time rules, mobile workers must normally keep average weekly working time at or below 48 hours over the reference period. A single week may reach up to 60 hours, but this does not remove the need to maintain the 48-hour average. Night work is normally limited to 10 hours in a 24-hour period unless a valid workforce agreement applies.
This page is designed as pillar content for HGV working time compliance. It combines a calculator, rule explanations, internal compliance links and official external guidance so that drivers and operators can make better decisions before problems occur.
The HGV WTD Calculator UK removes guesswork.
Use the daily, weekly and reference-period checks below to see whether your working time pattern is within the main WTD limits.
How the HGV WTD Calculator UK Works
The HGV WTD Calculator UK uses three practical checks. The daily check estimates working time after breaks and checks whether the correct WTD break amount has been taken. The weekly check adds up daily working time and compares it with the 60-hour single-week cap. The reference average check calculates whether the average stays within the 48-hour weekly limit over 17 or 26 weeks.
What counts as working time?
Working time can include driving, loading, unloading, vehicle checks, paperwork, training, maintenance-related duties, cleaning, dealing with customers and waiting time where the driver must remain at the employer’s disposal. Breaks, rest periods and genuine periods where the driver is free to use the time as they wish are not normally counted as working time.
Why this matters for drivers and operators
Incorrect WTD records can create DVSA inspection risk, operator licence concerns, payroll confusion and fatigue-management problems. A driver may appear safe on driving-time rules but still be working too many total hours. Transport managers should therefore monitor working time, tachograph activity, breaks, POA use and weekly averages together.
Daily Working Time & Break Check
Weekly Working Time Check
17 or 26 Week WTD Average Calculator
HGV WTD Calculator UK Rules Guide
Rule 1 — 48-hour average
Mobile workers must not exceed an average of 48 hours of working time per week over the reference period.
Rule 2 — 60-hour weekly cap
In any single week, working time must not exceed 60 hours. This is a cap, not a target.
Rule 3 — Night work limit
If the shift includes night work, working time is normally limited to 10 hours in a 24-hour period unless a valid workforce agreement applies.
Rule 4 — WTD breaks
More than 6 hours and up to 9 hours of working time requires breaks totalling at least 30 minutes. More than 9 hours requires breaks totalling at least 45 minutes.
Rule 5 — WTD vs tachograph rules
Drivers’ hours rules control driving time and rest. WTD rules control total working time. HGV drivers must comply with both.
Related HGV Compliance Guides
- HGV Working Time Directive UK
- HGV WTD & Break Planner UK
- HGV Driving Hours Calculator UK
- HGV Breaks and Rest Periods UK
- Tachograph Rules UK
- DVSA Checks UK
- HGV Penalties and Fines UK
- HGV Compliance Score
Official reference: GOV.UK working time rules for lorry, bus and coach drivers.
Need a Full Shift Planner?
Use the full planner to check WTD breaks, night work, driving limits and fatigue risk together.
Open HGV WTD & Break Planner UK →