Everhour tracks task and project hours, while Vietnam utilization math needs a clear available-hours denominator.
Measure billable utilization against total capacity and see exactly how many hours you're leaving on the table each period.
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A utilization rate answers one practical question: out of the hours a Vietnam-based employee was available to work, how many hours counted as billable or target work? The basic formula is billable hours divided by available hours, then multiplied by 100. The result can be used for pricing, hiring, workload planning, and service-margin reviews.
The main Vietnam-specific decision sits in the denominator. Vietnam's Labour Code sets normal working hours at no more than 8 hours per day and 48 hours per week, while Vietnamese law encourages employers to apply a 40-hour workweek. Many office and professional-services teams use 40 hours per week as firm-policy capacity.
A gross 40-hour annual capacity base is 2,080 hours, calculated as 40 hours × 52 weeks. For a Vietnamese employee in normal conditions on a 5-day, 40-hour week, statutory annual leave and public holidays reduce that base. Employees working in normal conditions receive 12 working days of paid annual leave after 12 months of work, and Vietnamese employees receive 11 paid public-holiday days.
That gives a net scheduled base of 1,896 hours: 2,080 − ((12 + 11) × 8). Higher-risk roles need a smaller denominator because Vietnam grants 14 paid annual-leave days for minors, disabled workers, and heavy, hazardous, or dangerous jobs, and 16 days for especially heavy, hazardous, or dangerous jobs. Annual leave also increases by one working day for every five years with the same employer.
The formula is utilization rate = billable hours ÷ available hours × 100. If a Vietnam-based consultant records 1,422 billable hours against a net annual capacity of 1,896 hours, utilization is 75%. At a VND 750,000 hourly billing rate, those billable hours carry VND 1,066,500,000 of recorded billable value before write-downs, discounts, taxes, or collections.
The numerator must match the business question. Client-billable delivery hours suit agency and consulting utilization. Productive internal project hours suit capacity planning for non-billable teams. Total logged hours answer a different question, because they include administration, meetings, training, and internal work. Mixing billable hours in the numerator with total logged hours in the denominator understates utilization against scheduled capacity.
A one-off utilization calculation is enough for a pricing check, a staffing conversation, or a quick comparison between two employees using the same denominator. It stops being enough when managers need weekly trend lines, approved time records, project-level billing handoffs, or capacity planning that nets out Vietnam leave and public holidays.
Everhour Time Tracking captures task and project hours through timers or manual entries, including inside supported project tools. Admins can use approvals, locked periods, reminders, and timer rules before time feeds timesheets, reports, budgeting, invoicing, and payroll review. That workflow turns the same utilization formula into a repeatable operating record.
This content is for general information only, may not be fully up to date, and is provided without any warranty or liability.
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Divide billable hours by available hours, then multiply by 100. For Vietnam, state the available-hours base clearly: gross capacity, scheduled hours net of statutory leave and public holidays, or total logged hours. A common office denominator is 1,896 annual hours for a Vietnamese employee in normal conditions on a 5-day, 40-hour week.
Use 48 hours only when the employee's normal schedule is built on the statutory-maximum gross capacity. Vietnam's Labour Code sets normal working hours at no more than 8 hours per day and 48 hours per week, but Vietnamese law encourages a 40-hour workweek. Firm policy should drive the denominator used for office capacity.
Public holidays reduce available hours when utilization is measured against scheduled working time net of leave and holidays. Vietnamese employees receive 11 paid public-holiday days each year. Foreign employees in Vietnam receive those 11 days plus one traditional New Year holiday and one National Day from their own country, so their denominator can be two workdays lower.
Annual leave should vary when the worker category changes the statutory leave entitlement. Employees in normal conditions receive 12 working days after 12 months of work. Minors, disabled workers, and heavy, hazardous, or dangerous jobs receive 14 days, while especially heavy, hazardous, or dangerous jobs receive 16 days. Seniority adds one working day every five years with the same employer.
Vietnam does not set a legal utilization-rate target. Employers set targets by role, client mix, pricing model, and service expectations. A target for a billable consultant can be much higher than a target for a manager who handles reviews, sales support, hiring, and internal delivery oversight.
Everhour Time Tracking captures task and project hours through timers or manual entries, including inside tools such as Asana, ClickUp, GitHub, Jira, Monday, Notion, Trello, and Basecamp. Approved time can then feed timesheets, reporting, budgeting, invoicing, and payroll review without rebuilding the utilization numerator from scattered records.
Everhour Reporting turns logged time, budgets, costs, and project data into customizable reports with columns, grouping, filters, date ranges, and exports. Managers can separate billable time from non-billable time, compare project hours with capacity, and export CSV, Excel/XLSX, or PDF files for review.
Track approved hours in Everhour, then use timers, manual entries, locked periods, and reporting to keep Vietnam utilization reviews tied to real project records.
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