Shipping Cost Estimator

This calculator uses the simplest possible shipping cost model: billable weight multiplied by a flat rate per pound (or kilogram). It is meant for quick what-if comparisons — not a real-time carrier quote, which also factors in zone, service level, fuel surcharges, and accessorial fees.

Get your rate per unit from a carrier rate sheet, a freight broker quote, or your own historical average cost per pound for a given lane. Use the billable weight calculator first if you are not sure whether actual or dimensional weight applies to your package.

Example: a package with a billable weight of 22 lb at a rate of $4.50 per pound costs about $99.00 (22 × 4.50) — before any surcharges, insurance, or delivery area fees the carrier may add.

A flat rate per pound fits some shipping arrangements and badly misrepresents others. It works for LTL freight, negotiated bulk contracts, and internal cost allocation. It does not model retail parcel pricing, which is a zone-by-weight matrix where cost per pound falls sharply as weight rises — a 2 lb parcel might cost $9 and a 20 lb parcel $22, so a single $/lb figure cannot describe both.

Derive your rate from actual invoices rather than a rate card if you can. Take total spend on a lane over a quarter and divide by total billable pounds; that blended figure already includes the fuel surcharge and accessorials you routinely incur, which is what makes it useful for forecasting.

Fuel surcharges are the largest routine addition and they are percentage-based, so they scale with the base rate rather than the weight. Carriers publish an index that moves weekly or monthly, and figures in the double-digit percentages are common — a $99 base can land near $115 before any other fee.

Accessorial charges are where quotes and invoices diverge most. Residential delivery, delivery area surcharges for remote postcodes, address correction, liftgate service, limited-access locations, and Saturday delivery are each billed separately, and any one can add $5 to $50 to a single shipment.

Use this as a what-if tool: hold billable weight constant and vary the rate to see what a negotiated discount is worth, or hold the rate and vary weight to see what right-sizing packaging saves. For an actual quote, price the specific service, zone, and dimensions with the carrier.

Compare multiple rate scenarios by changing only the $/lb field while holding weight constant.