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Box Truck Profit Calculator

Estimate your true net profit per mile, per day, per week, and per month on a 16–26 ft box truck. Switch between per-mile spot rates and weekly contract gross, and share your exact scenario via URL.

By BoxTruckDesk Editorial Team (16–26ft Box Truck Operations & Dispatch)Last updated: 5 min read

Informational Disclaimer: Figures, rates, and examples on this page are estimates for educational planning—not legal, tax, accounting, or insurance advice. Operating costs and regulations vary by state, truck spec, and authority history. Verify rules directly with the FMCSA, your state DMV, and a licensed commercial insurance agent.

16–26 ft Box Truck Profit Calculator

Calculates net profit per mile, per day, per week & per month

1. Revenue & Weekly Mileage
2. Variable Running Costs (Fuel, Maintenance, Driver & Factoring)
3. Monthly Fixed Overhead (Truck Note & Commercial Insurance)
Net Profit Breakdown60.8% Net Margin
Net Profit / Mile$1.49Gross $2.45 − $0.96 CPM
Net Profit / Day$744Across 5 operating days/wk
Weekly Net Profit$3,721On $6,125 weekly gross
Monthly Net Profit$16,112Pre-tax take-home (4.33 wks)
Weekly Gross Revenue (2,500 mi):$6,125
Diesel Fuel (294 gal @ $3.85):−$1,132
Truck Note + Insurance (Weekly Share):−$624
Maintenance Reserve ($0.16/mi):−$400
Tolls, ELD & Factoring (2.5%):−$248
True All-In Cost Per Mile (CPM):$0.96 / mi

How the Box Truck Profit Calculator Works

Gross revenue on a rate confirmation or Amazon Relay settlement is not what you take home. Every week a 16 ft to 26 ft straight truck runs, it pays two distinct buckets of expenses: variable running costs that scale with every mile driven (diesel fuel, maintenance and tire reserves, factoring fees, and driver wages) and fixed monthly overhead that must be paid even when the truck is parked (truck payment or lease, commercial auto liability and cargo insurance, and ELD subscriptions).

This calculator converts your monthly truck note and insurance into a weekly share using 4.33 weeks per month (52 weeks ÷ 12 months), subtracts all variable and fixed expenses from your weekly gross revenue, and outputs your pre-tax net profit per mile, per working day, per week, and per month. If you want to audit your fixed and variable cost categories in deeper detail, run our Box Truck Cost Per Mile Calculator next.

Formulas Used in This Tool

1. Weekly Gross Revenue = All-In Weekly Miles × Avg Rate Per Mile (or Weekly Flat Load Gross)
2. Weekly Diesel Cost = (All-In Weekly Miles ÷ Truck MPG) × Diesel Price per Gallon
3. Weekly Fixed Overhead = (Monthly Truck Note + Monthly Insurance) ÷ 4.33
4. Weekly Variable Non-Fuel = (Miles × Maint $/mi) + (Miles × Driver $/mi) + Weekly Tolls + (Gross × Factoring %)
5. Weekly Net Profit = Weekly Gross Revenue − (Weekly Diesel Cost + Weekly Fixed Overhead + Weekly Variable Non-Fuel)
6. Net Profit Per Mile = Weekly Net Profit ÷ All-In Weekly Miles

Worked Example with Real Numbers (26 ft Non-CDL Owner-Operator)

Suppose an owner-operator drives their own 26 ft diesel box truck 2,500 all-in miles per week across 5 working days (about 2,150 loaded miles and 350 empty deadhead miles), averaging an all-in rate of $2.45 per mile:

  • Weekly Gross Revenue: 2,500 miles × $2.45/mi = $6,125.00
  • Weekly Diesel Fuel (8.5 MPG @ $3.85/gal): 294.1 gallons × $3.85 = −$1,132.35
  • Weekly Share of Truck Payment ($1,450/mo ÷ 4.33): −$334.87
  • Weekly Share of Commercial Insurance ($1,250/mo ÷ 4.33): −$288.68
  • Maintenance & Tire Escrow ($0.16/mi × 2,500 mi): −$400.00
  • Tolls & ELD ($95/wk) + Factoring Fee (2.5% of $6,125 = $153.13): −$248.13

Result: Total weekly expenses equal $2,404.03 (an all-in Cost Per Mile of $0.96/mi). That leaves a pre-tax Weekly Net Profit of $3,720.97 ($1.49 net profit per mile, $744.19 per working day, or roughly $16,112 per month before taxes). For a broader breakdown of real-world owner-operator earnings across local vs. regional freight, read our How Much Do Box Truck Owners Make guide.

Common Mistakes When Estimating Box Truck Profit

  1. Forgetting empty deadhead miles: If a broker pays $3.00/mile on 200 loaded miles ($600), but you drive 60 empty miles to pick it up, your actual rate across 260 total miles is $2.31/mile. Always check rate dilution in our Box Truck Deadhead Cost Calculator.
  2. Skipping the maintenance reserve in months when nothing breaks: A single DPF/DEF aftertreatment repair or set of six 22.5-inch commercial tires can cost $2,400 to $4,500 (estimate). Treating months without shop visits as pure profit leaves you short when a major repair hits.
  3. Underestimating first-year commercial insurance: Brand-new USDOT/MC authorities often pay $1,100 to $1,800+ per month (estimate depending on state, radius, and MVR). See our Box Truck Insurance Cost Guide for realistic benchmarks.

Frequently Asked Questions

1. What is a good net profit margin for a 26 ft box truck owner-operator?

When driving the truck yourself, a healthy pre-tax net margin typically ranges from 28% to 38% of gross revenue after paying diesel, commercial insurance, truck financing, maintenance reserves, and factoring fees. If you put a hired driver in the seat, fleet owner net margin per truck usually ranges from 10% to 18%.

2. Why does the calculator divide monthly truck payments and insurance by 4.33 weeks?

A calendar year has 52 weeks divided across 12 months, which equals 4.333 weeks per month. Dividing monthly fixed overhead by 4 instead of 4.33 overstates weekly fixed costs by 8.3%.

3. Should I enter loaded miles or all-in miles into the box truck profit calculator?

Always enter all-in miles (loaded miles plus empty deadhead miles) so your diesel burn and per-mile maintenance reserve account for every mile the odometer turns.

4. How much should I set aside per mile for box truck maintenance and tires?

Most owner-operators running late-model 26 ft diesel box trucks set aside an estimated $0.14 to $0.22 per mile for preventative maintenance, tires, brakes, liftgate servicing, and DPF/DEF emissions repairs. Older trucks with over 250,000 miles often require $0.22 to $0.30+ per mile.

5. Does net profit in this calculator include self-employment and income taxes?

The calculator outputs pre-tax net operating profit. Owner-operators typically set aside an estimated 20% to 28% of pre-tax net profit in a separate tax savings account for quarterly federal and state estimated taxes.

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