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Operating cost of equipment and fleet per hour and per km

Enter the price, life, use, and costs of the equipment. The page adds the fixed and variable costs, gives the cost per hour and per km, and shows from how many hours per year it is better to own the equipment than to rent it.

Pre-sizing and estimating tool: the results do not replace a design, calculation, or report signed by a qualified professional, nor verification against the applicable standards.

Preliminary estimateRevision 12/11/2026

The example is a R$ 320 thousand delivery truck that runs 1,800 h per year at an average of 40 km/h, with a driver. All market values (vehicle price, fuel, tires, salary, rental) are examples: enter your own.

Acquisition and life
Other fixed costs
Utilization
Costs that vary with use
Operator or driver
Comparison with rental
Top-up: cost per kilometre

This block uses the fields above. Mileage and maintenance per km do not enter the cost per hour.

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—Operating cost per hour
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Cost breakdown per hour

Each row is a cost item, in R$ per hour of use, per km and per year, with the fixed and variable parts separated.

Legend: fixed = exists even when the equipment is stopped (depreciation, interest, insurance, licensing); variable = only spent when running (fuel, tires, maintenance, operator). Straight-line depreciation between the price and the residual value; interest on the average capital tied up, (price + residual) ÷ 2.

Where each hour's cost goes

Cost per hour of each item, in R$.

Tap the chart to see the values.

How to read: each bar is a cost item, and its length is how much it costs per hour of use, in R$. Fixed items appear in the lighter color. If depreciation and interest are the biggest bars, the equipment is expensive for the use it gets; if fuel and operator are the largest, the cost depends on running it well, not on owning the equipment.

Cost per hour × hours of use per year

Cost per hour of own equipment (full, without fuel or operator) and of dry rental.

Tap the chart to see the values.

How to read: the horizontal axis is how many hours per year the equipment works; the vertical is the cost of each hour. The cost of owned equipment falls when it is used more, because the fixed part is spread out. The rental line is constant. Where the curve of owning (without fuel and operator, to compare with dry rental) crosses the rental line is the break-even point: above these hours per year, buying pays off; below, renting does.

What if the data changes?

Drag the controls to simulate data different from what you entered (from 30% less to 30% more) and watch the result change instantly.

Tap the chart to see the values.

Cost per hour by hours of use per year

Fixed, variable and total cost per hour for different hours of use per year, with the other data entered.

Step by step with your numbers

The calculation done in steps, with the values you entered.

    Next step

    Take this page's results to another calculator, with the fields already filled in.

    —Cost per kilometre
    —

    Annual cost by component

    How much each part of the truck's cost weighs over the year.

    Tap the chart to see the values.

    Cost per km by mileage

    Cost per kilometre for 40 thousand to 120 thousand km per year; the point is your mileage.

    Tap the chart to see the values.

    The calculation memo gathers this page's inputs, results, equations, assumptions, and references, with fields for project, responsible person, and review. The full report also includes the charts and interpretations, in color. In the print window, choose Save as PDF.

    How to use

    Enter the acquisition price, the useful life, and the residual value. Then the annual fixed costs (interest, insurance, licensing, and storage), the hours of use per year, and the average speed. Last, fuel consumption, diesel price, tires, maintenance, operator, and charges. The result shows the fixed and variable cost per hour, the cost per km, and the cost per year, and compares it with the dry rental. The block Top-up: cost per kilometre uses the same data and asks for annual mileage and maintenance per km; it shows the cost per km by mileage and the annual cost by component.

    Hypothetical example (illustrative values)

    Hypothetical values, to understand the calculation. They are not technical or market references.

    Truck of R$ 320,000, useful life of 8 years, residual of 25%, 1,800 h of use per year at 40 km/h. Consumes 8 L/h of diesel at R$ 6.00 per litre; operator at R$ 3,200 per month, with 80% charges, for 220 paid hours per month.

    Fixed cost per hour: R$ 40.61 (depreciation R$ 30,000, interest R$ 24,000, insurance R$ 9,600, licensing and garage R$ 9,500, added together and divided by 1,800 h).

    Variable cost per hour: R$ 96.82, made up of R$ 48.00 fuel, R$ 26.18 operator, R$ 13.33 maintenance, R$ 4.80 lubricants and R$ 4.50 tires.

    Total: R$ 137.43 per hour, or R$ 3.44 per km at 40 km/h.

    Precautions

    • Tires, maintenance and fuel use are estimates; use your fleet's history.
    • The two blocks have their own assumptions: the cost per hour uses hours of use, and the supplement uses mileage. They can give different values for the same truck.
    • Fixed cost per hour falls when the truck runs more hours in the year. That is why hours of use is the input that changes the result the most.
    • For the operator cost per hour, see the machine hourly cost. To compare with rental and financing, see buy, finance, rent or lease.

    Method, assumptions, and references

    Equations used

    Top-up, cost per km: (annual fixed cost + (diesel price × consumption ÷ speed + maintenance per km) × km per year) ÷ km per year
    Top-up, annual cost by component: depreciation, interest, insurance, licensing, garage, driver, diesel and maintenance, added together
    Depreciation = (price − residual) ÷ life; interest = (price + residual) ÷ 2 × rate; insurance = price × %
    Fixed per hour = (depreciation + interest + insurance + licensing + other) ÷ hours per year
    Variable cost per hour = consumption × price + lubricants + tire set price ÷ life + price × % maintenance ÷ (life × hours per year) + operator
    Cost per km = cost per hour ÷ average speed
    Breakeven (h/year) = annual fixed cost ÷ (dry rental − tires − maintenance per hour)

    Assumptions and limits

    • Straight-line depreciation and interest on average capital; maintenance spread evenly over the life hours, with the hourly value calculated at the hours of use entered and kept constant on the second chart's curve (in practice it rises with age).
    • The operator is paid only for hours of use. If the operator is fixed, they go into the fixed cost.
    • Market prices (fuel, tires, wages, rent) are entered by you; the page does not check quotes. Rent is compared on the same basis: no fuel and no operator.

    Standards and technical documents

    • ASAE EP496.3 / D497: Agricultural Machinery Management (fixed and variable hourly cost method)
    • Method reference: ownership and operation costs of machinery

    Legislation and regulations in Brazil

    • Licensing costs, mandatory insurance and labour charges follow current legislation: enter the amounts from your fee slip and your payroll.

    Frequently asked questions

    What goes into the operating cost of mobile equipment?

    Fixed costs (depreciation, interest on capital, insurance, licensing and other costs that exist even when idle) and variable costs (fuel, lubricants, tires, maintenance and operator). Dividing the total by hours of use gives the cost per hour; dividing by average speed gives the cost per km.

    How to calculate depreciation and interest?

    Straight-line depreciation: (price − residual value) ÷ useful life in years. Interest: rate × average capital tied up, which is (price + residual value) ÷ 2, because the equipment's value falls over its life. Added together, they are the base of the fixed cost.

    What is the difference between cost per hour and cost per km?

    Cost per hour applies to any equipment, including equipment that does not move. Cost per km is the cost per hour divided by the average operating speed, including stops. It only makes sense for vehicles.

    How does annual use change the cost per hour?

    It varies a lot. The fixed part is the same each year, so the more hours the equipment works, the less fixed cost each hour carries. The chart shows the curve: with little use, the cost per hour rises sharply.

    How to find the break-even point against renting?

    The annual fixed cost is compared with the saving per hour of not renting: dry rental minus the variable cost of your own machine without fuel and operator. Break-even hours = annual fixed cost ÷ that saving. Above them, owning the equipment pays off.

    Is this calculator for freight trucks?

    It is for operating cost. For freight price with taxes and margin, cost per tonne and comparison with a third party, use the freight cost calculator linked below; for the number of vehicles, use the fleet sizing calculator.

    Are the example values reliable?

    These are plausible examples, not quotes. Vehicle price, fuel, tires, wages and rent vary by region and month. Enter your own, and check the interest rate and residual value, which are usually the biggest uncertainties.