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Freight Class Calculator - Free NMFC freight class calculator for LTL shipping

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Calculate your freight class from dimensions and weight using the current NMFC 13-sub density scale (effective July 19, 2025). Full freight class chart 50–500, NMFC code explainer, and reclassification fee guide. Free, no login.

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Hey PH! 👋 We built this because freight class is confusing — and getting it wrong is expensive. If you've ever shipped LTL freight, you know the drill: you guess the class, the carrier re-weighs and re-measures at the terminal, and suddenly your $200 shipment is $350. Reclassification fees suck. The NMFC changed their rules in July 2025 — now most freight class is purely density-based. Measure your pallet, weigh it, do the math. Simple in theory, but nobody wants to dig through density tables. So we made this calculator. Punch in dimensions and weight, get your freight class instantly. No signup, no email capture, no BS. Just the answer. We're a 3PL in LA (3PLGuys) and we use this internally every day. Figured others might find it useful too. Let us know what you think — happy to answer any freight/logistics questions in the comments!