# TruckerToolsHub > TruckerToolsHub provides free, instant, precision mathematical calculators, regulatory compliance data, and operational research for commercial truck drivers, independent owner-operators, freight brokers, and fleet managers across North America. All tools run 100% client-side with zero paywalls, zero logins, and dual US Imperial and Canadian Metric support. ## Core Precision Commercial Calculators - [Cost Per Mile Calculator](https://www.truckertoolshub.com/calculators/cost-per-mile): Calculate total fixed and variable operating costs per mile (CPM) or per kilometer (CPK) to establish minimum profitable load rates. - [Federal Bridge Formula B Calculator](https://www.truckertoolshub.com/calculators/bridge-formula): Verify inner and outer bridge axle spacing under 23 CFR ยง 658.17 to prevent scale-house citations and calculate maximum legal gross weight. - [Freight Density & NMFC Class Calculator](https://www.truckertoolshub.com/calculators/freight-density): Compute pounds per cubic foot (PCF) and map directly to official 18-tier NMFC freight classes (Class 50 to Class 500) to prevent carrier re-classification fees. - [Fuel Surcharge (FSC) Calculator](https://www.truckertoolshub.com/calculators/fuel-surcharge): Bill shippers accurately using weekly EIA national on-highway diesel pegs or Canadian FCA rack rates in cents per mile or linehaul percentage. - [Trucking Detention Time Calculator](https://www.truckertoolshub.com/calculators/detention-calc): Calculate billable shipper/receiver dwell fees after standard 2-hour free time based on $50-$100/hr commercial dock rates. - [DOT Hours of Service (HOS) Planner](https://www.truckertoolshub.com/calculators/hos-planner): Plan legal driving shifts under FMCSA 11-hour driving, 14-hour duty window, 70-hour/8-day cycles, and split sleeper berth provisions (8/2 & 7/3). - [Deadhead Miles & True RPM Calculator](https://www.truckertoolshub.com/calculators/deadhead-calc): Measure the true effective revenue-per-mile across both loaded and empty transit miles to evaluate spot market load profitability. - [Reefer Fuel Consumption Calculator](https://www.truckertoolshub.com/calculators/reefer-fuel): Estimate diesel burn rates (0.4 to 1.1 gal/hr) for refrigerated trailers across Continuous and Cycle-Sentry modes under varying ambient temperatures. - [Hotshot Trucking Profit & Weight Calculator](https://www.truckertoolshub.com/calculators/hotshot-profit): Calculate net weekly earnings, fuel expenses, and verify the critical 26,000 lbs GVWR Non-CDL threshold for Class 3/4/5 rigs. - [Semi-Truck Loan & Lease Calculator](https://www.truckertoolshub.com/calculators/semi-loan): Calculate monthly commercial vehicle financing, total interest expenses, and Section 179 first-year tax write-off depreciation savings. ## Regional Market Indices & Regulatory Directories - [Weekly EIA Diesel Fuel Prices & Surcharge Tracker](https://www.truckertoolshub.com/fuel-prices): Official weekly retail on-highway diesel fuel prices published by the U.S. EIA across all 7 PADD regions, with interactive 1-click FSC surcharge per mile calculations. - [50-State Trucking Regulations & Weight Limits Hub](https://www.truckertoolshub.com/state-regulations): State-by-state commercial vehicle codes for kingpin-to-rear-axle distance limits (including California 40-foot rule), steer/single/tandem axle weight limits, seasonal spring thaw frost laws, and IFTA diesel tax rates. ## Original Industry Benchmark Research - [2026 Commercial Trucking Cost Per Mile & Operating Expense Benchmark Report](https://www.truckertoolshub.com/research/2026-trucking-cost-per-mile-report): Comprehensive empirical study analyzing national trucking operating costs ($2.270/mi national average), 50-state commercial insurance variations, equipment-specific operating profiles (Dry Van, Reefer, Flatbed, Tanker, Hotshot), diesel fuel volatility matrices, and carrier cost structures. ## Essential Operational & Regulatory Pillar Guides - [How to Calculate Trucking Cost Per Mile](https://www.truckertoolshub.com/guides/how-to-calculate-trucking-cost-per-mile): Complete step-by-step mathematical guide to calculating fixed vs variable trucking expenses. - [Trucking Detention Pay Rates & Carrier Rules](https://www.truckertoolshub.com/guides/trucking-detention-pay-rates-rules): Industry standards for warehouse dwell time billing, signed bill-of-lading (BOL) timestamps, and rate-con clauses. - [Federal Bridge Formula B Explained](https://www.truckertoolshub.com/guides/federal-bridge-formula-b-explained): Mathematical breakdown of the FHWA bridge formula (W = 500 * [LN/(N-1) + 12N + 36]), axle spacings, and tandem sliding. - [EIA Diesel Fuel Surcharge Formula Guide](https://www.truckertoolshub.com/guides/fuel-surcharge-formula-eia-rates): How to calculate fuel surcharges using weekly EIA diesel price pegs, base prices, and fleet fuel economy pegs. - [DOT 11-Hour & 14-Hour Rules Explained](https://www.truckertoolshub.com/guides/dot-11-hour-14-hour-hos-rules): FMCSA Part 395 regulations covering duty windows, 30-minute rest breaks, and 10-hour off-duty resets. - [Loaded vs Deadhead Miles & True RPM](https://www.truckertoolshub.com/guides/loaded-vs-deadhead-trucking-miles): Why empty miles destroy carrier profitability and how to calculate blended revenue per mile. - [Non-CDL Hotshot 26,000 lbs GVWR Rules](https://www.truckertoolshub.com/guides/non-cdl-hotshot-weight-limits-26000-gvwr): Truck and trailer weight rating combinations, CDL triggers, and bridge weight compliance for hotshot operators. - [IFTA Fuel Tax Calculation & Quarterly Reporting](https://www.truckertoolshub.com/guides/ifta-fuel-tax-calculation-guide): Step-by-step formula for calculating jurisdiction fuel tax liabilities, net tax due, and gallon credits. - [CAT Scale Weighing Protocol for Steer, Drive & Tandems](https://www.truckertoolshub.com/guides/cat-scale-weighing-protocol): How to weigh a 5-axle tractor-trailer on certified scale platforms and verify legal axle distribution. - [How to Slide Semi-Truck Tandems to Balance Weight](https://www.truckertoolshub.com/guides/how-to-slide-semi-truck-tandems): The 250-400 lbs per pin hole rule for shifting weight between drive axles and trailer tandems. - [Split Sleeper Berth 8/2 and 7/3 Provision](https://www.truckertoolshub.com/guides/split-sleeper-berth-8-2-and-7-3-guide): How to legally pause the 14-hour driving window using qualifying sleeper berth periods. ## Machine Discovery & Indexing - [XML Sitemap](https://www.truckertoolshub.com/sitemap.xml): Complete machine-readable index of all 51 canonical URLs. - [Calculators Directory](https://www.truckertoolshub.com/calculators): Master hub for all 10 freight calculators. - [Educational Guides Directory](https://www.truckertoolshub.com/guides): Master repository of all 30 industry compliance articles. - [Research Hub](https://www.truckertoolshub.com/research): Industry research studies and fleet economic whitepapers.