Dump Truck Cycle, Fleet & Hauling Cost Calculator

What this dump truck calculator is built to answer

A bulk-hauling estimate has several connected questions: how much material fits, how long one round takes, how many trucks can the loader serve, how many tons the fleet can move, what that production costs, and which billing unit makes the scope easiest to understand. This calculator keeps those steps in one audit trail.

It is intentionally different from the Dump Trailer Load and Hauling Calculator, which is designed for smaller truck-and-trailer work, and the Trailer Hauling Cost Calculator, which prices equipment transport. Use this page for repeated bulk-material cycles by a dump-truck fleet.

Payload: use the lower limit

The truck can become weight-limited before the body is full, or volume-limited before the verified payload is reached. The tool multiplies usable dump-body volume by loose material density, then compares that result with the payload limit you entered. The lower number becomes the planned tons per load.

That comparison is a planning safeguard, not a legal-weight decision. The Federal Highway Administration explains that Interstate limits include axle, gross-weight, and Bridge Formula constraints, while off-Interstate standards can differ by state. Enter only a payload already checked for the actual truck, axle spacing, tires, registration, route, and permit. Body size alone cannot establish a legal load.

Cycle time and matched fleet size

The U.S. Office of Surface Mining Reclamation and Enforcement truck worksheet treats a cycle as loading plus loaded haul, dump and maneuver, and return. It also estimates the theoretical number of trucks needed to keep one loader occupied by dividing cycle time by loading time. This calculator follows that framework and adds a separate average delay input so queue, scale, and recurring traffic time remain visible.

Adding trucks does not create unlimited production. When the fleet can return faster than one loader can serve it, the calculator caps loads per hour at the loader's service rate and warns that trucks may queue. When too few trucks are assigned, the loader may wait. The matched count is a starting point for dispatch—not a promise that every cycle will repeat exactly.

Worked example

The sample scenario moves 240 loose tons using three trucks. A 14-loose-yard body at 1.5 tons per loose yard could hold 21 tons by volume, but the verified payload input is 20 tons, so weight governs and the job requires 12 whole loads. Ten loaded miles at 35 mph, ten return miles at 45 mph, eight minutes to load and spot, six minutes to dump, and six combined minutes for maneuvering and delay produce a cycle of about 50.48 minutes.

At those assumptions, three trucks move about 3.57 loads or 71.32 tons per hour. The modeled fleet is below the seven-truck theoretical match for an eight-minute loader service time, so the loader may wait between arrivals. The cost results then apply fleet-hours, loader time, disposal, load fees, fixed cost, overhead, and margin. Every displayed dollar amount comes from the inputs—none is presented as a national market rate.

Keep hourly cost categories from overlapping

Truck equipment cost should contain ownership and nonfuel operating cost: depreciation or lease recovery, maintenance, repairs, tires, insurance, registration, and similar truck expense. Fuel and DEF have their own line, and the burdened driver cost has another. If a fleet's hourly figure already includes either category, enter zero in the matching separate field so it is not counted twice.

Komatsu's cost-per-ton explanation likewise connects hourly running cost with hourly production. The value of the unit metric depends on consistent cost boundaries. Use the Equipment Hourly Rate Calculator to develop an owned-equipment cost, and use actual fuel records or the Equipment Fuel Cost Calculator when the fuel input needs more detail.

Use the delay test before committing to a price

Ten extra minutes does not sound large until it repeats on every load. The delay test recalculates fleet elapsed time and hourly cost with ten minutes added to each cycle while leaving quantity, disposal, and fixed fees unchanged. It shows the additional hours, total internal cost, and cost per ton.

If the result materially changes the bid, write the wait-time assumption into the quote. State which party controls loading, scale access, dump access, gate hours, and standby. A clear change trigger is more useful than hiding a generous delay allowance inside an unexplained per-ton number.

Field-check the estimate

• Record arrival, load release, dump arrival, dump release, and return times for a representative sample.
• Use scale tickets to compare planned payload with actual tons per load.
• Separate recurring delay from one-time disruption before changing the default cycle.
• Compare estimated and actual fleet-hours, disposal, fuel, and loads at the end of the job.
• Save a revised scenario for the same route, material, loader, and truck class rather than turning one job into a universal default.

Caterpillar's guidance on loader productivity and production measurement emphasizes cycle time, payload, load count, and stopped time. Field records are the best way to replace planning assumptions with local evidence.

Method and primary sources

The cycle and loader-match framework is based on the official OSMRE truck-use worksheet cited above. FHWA's Earthwork Design guidance explains that material volume changes among bank, loose transport, and compacted conditions and that project-specific factors should be used. FHWA's vehicle size and weight overview supports the verified-payload warning.

Use the U.S. Energy Information Administration's weekly diesel prices only as a dated benchmark when fleet records or local receipts are unavailable. Interstate commercial operations may also be affected by the FMCSA's hours-of-service rules; the calculator does not determine whether a short-haul exception or any other rule applies. Sources and method reviewed August 19, 2026.

Use the right cycle model

Use this calculator when payload, fleet balance, route time, queue delay, disposal, and hauling price all affect the estimate. For a single machine's repeatable non-hauling task, use the Equipment Production and Unit Cost Calculator.