What Is Sales Per Labor Hour?
Sales per labor hour — known in Japanese restaurant management as ninji-uriagedaka — measures the average revenue a business generates for every single hour of employee labor. It is a core productivity KPI for restaurants, cafes and retail, but because the math is simply revenue divided by hours, it works in any country and any currency. Enter your figures in your local currency; the result comes back in that same currency, per labor hour.
How to Use the Calculator
Enter two values: your Monthly Sales (Revenue) and your Monthly Total Labor Hours. The total labor hours must include every working hour for the period — full-time staff regular hours, full-time overtime, and all part-time or casual ("arubaito") hours. Sum them before entering. The calculator divides sales by hours to give the headline figure.
The Formula Explained
The equation is: $$\text{Sales Per Labor Hour} = \frac{\text{Monthly Sales}}{\text{Monthly Total Labor Hours}}$$ No unit conversion is needed — currency passes through unchanged and time is already expressed in hours. The only guard is that total labor hours must be greater than zero, otherwise the division is undefined.
Worked Example
Suppose a restaurant records 5,000,000 in monthly sales and logs 1,250 total labor hours across all staff. The calculation is $$5{,}000{,}000 \div 1{,}250 = 4{,}000$$ So the store generates 4,000 currency units of revenue per labor hour. A second example: 8,400,000 in sales over 1,400 hours gives $$8{,}400{,}000 \div 1{,}400 = 6{,}000$$ per labor hour.
FAQ
What is a good sales-per-labor-hour value? There is no universal target — each store sets its own ideal based on its menu prices and staffing model. The closer a manager brings the actual figure to the store's target, the better the labor productivity. It is often described as a measure of the store manager's operational skill.
Which hours should I include? All paid working hours: full-time regular hours, full-time overtime, and every part-time and casual hour. Leaving any out will overstate your productivity.
Does the currency matter? No. The metric is currency-agnostic; the result is simply in whatever currency you used for sales, expressed per hour.
