If you're behind the wheel every day, you already know the math never stops. How many hours can I legally drive before I need to pull over? Is this load worth taking after fuel and deadhead? Am I going to get flagged at the scale house? These are questions every CDL driver and owner-operator asks on almost every single run — and until now, there hasn't been one clean, free tool that answers all three.
That changes today. Meet HaulTools — a free, mobile-first tool built specifically for life in the cab.
⏱ Tab 1: HOS Calculator
Hours of Service compliance is the most important daily calculation in trucking — and the most stressful to get wrong. A single violation can cost hundreds in fines and put your CDL at risk.
The HaulTools HOS Calculator takes your shift start time, hours driven so far, total on-duty time, break status, and your 70-hour or 60-hour cycle usage — and instantly tells you:
- Exactly how many driving hours you have left
- How much of your 14-hour on-duty window remains
- Whether your 30-minute break requirement is satisfied
- Your remaining cycle hours before a 34-hour restart is needed
It also draws a visual 14-hour timeline so you can see at a glance exactly where you are in your window. Red alerts fire automatically if you're at risk of a violation. No math, no guessing — just your numbers, right now.
Quick reminder: Under FMCSA rules, property-carrying drivers have an 11-hour driving limit inside a 14-hour on-duty window after 10 consecutive hours off. The 30-minute break is required once you've driven 8 cumulative hours without an interruption of at least 30 minutes.
💵 Tab 2: Freight Rate & Cost-Per-Mile Calculator
For owner-operators and lease drivers, accepting the wrong load isn't just a bad day — it can mean running at a loss. The freight rate calculator breaks down every load so you know exactly what you're actually making.
Enter your load rate, total miles, deadhead miles, current diesel price, your truck's MPG, driver pay per mile, tolls, and any other costs. The tool outputs:
- Revenue per loaded mile
- True cost per mile (including deadhead)
- Net profit after all expenses
- Profit margin as a percentage
- Full itemized cost breakdown
Results are color-coded against industry benchmarks — green means you're running strong, red means you might want to renegotiate before you roll. Perfect for the broker call when you need a real number fast.
Owner-op rule of thumb: Your all-in cost per mile typically runs $1.40–$1.80 depending on your truck payment, insurance, and maintenance reserves. Aim for at least $0.80 above your cost per mile to stay profitable once you factor in deadhead and empty miles.
⚖️ Tab 3: Axle Weight & DOT Compliance Checker
Getting flagged at a weigh station for an overweight axle is expensive, time-consuming, and completely avoidable. The axle weight checker lets you punch in your steer, drive tandem, trailer tandem, and lift axle weights before you leave the shipper's dock.
The tool checks every axle group against federal DOT limits and shows you:
- Gross vehicle weight vs. the 80,000 lb federal limit
- Each axle as a percentage of its legal maximum
- Exact overage in pounds if you're over on any axle
- Color-coded OK / Caution / Over status for every group
Catch the problem at the dock, redistribute the load, and roll legal — instead of finding out the hard way at a port of entry.
Built for the Cab — Not the Office
Most trucking tools are designed for fleet managers sitting at a desk. HaulTools was built the other way around — high contrast, big touch targets, readable in direct sunlight, and fast enough to use with one hand between stops.
It runs entirely in your browser. No app download, no account, no subscription. Bookmark it on your phone's home screen and it's there every single run.
No download. No sign-up. Works on any phone or tablet.
#TruckingLife #OwnerOperator #FreightBroker #LogisticsManagement #CDLDriver

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