GlossaryEN1 min readUpdated: Jun 18, 2026
Variable Freight Rates
Shippers and carriers work with variable freight rates when transport charges are not fixed but tied to changing parameters—typically fuel prices, seasonal demand peaks, capacity utilization, or shipment weight and volume.
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Source: https://www.investopedia.com/terms/f/freight-rate.asp
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Definition & Explanation
Shippers and carriers work with variable freight rates when transport charges are not fixed but tied to changing parameters—typically fuel prices, seasonal demand peaks, capacity utilization, or shipment weight and volume. Fixed rates, by contrast, apply for a defined period and give the shipper predictable costs; variable rates allow carriers to pass on fluctuating operating expenses and actively manage load factors. In ocean freight, the Bunker Adjustment Factor (BAF) is a well-known example; in air freight, fuel surcharges and capacity constraints play a comparable role. For exporters and importers, this means that quotes containing variable components must be carefully assessed for cost predictability, particularly on longer supply chains.
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