# Landed Cost per Usable Unit Calculator Allocate purchase, exchange conversion and batch charges across usable units. [Open this tool](https://whatson.pk/landed-calculator/) Category: Seller Pricing & Profit The useful cost per item depends on usable units after purchase charges and losses. Enter invoice conversion and batch charges from your records, then deduct valid credits and account for unusable items. ## Inputs and controls * Supplier invoice amount (source currency). Allowed range: 0 to 1000000000 * Source currency label * PKR per source currency unit (PKR/unit). Allowed range: 1.0E-6 to 1000000 * Purchased units (units). Allowed range: 1 to 1000000 * Unusable unit allowance (%). Allowed range: 0 to 100 * Freight (PKR). Allowed range: 0 to 1000000000 * Insurance (PKR). Allowed range: 0 to 1000000000 * Entered duty and tax charges (PKR). Allowed range: 0 to 1000000000 * Handling (PKR). Allowed range: 0 to 1000000000 * Other landed expense (PKR). Allowed range: 0 to 1000000000 * Salvage credit actually accounted for (PKR). Allowed range: 0 to 1000000000 ## How to use * Enter supplier invoice amount, source currency label, PKR per source currency unit, purchased units and unusable unit allowance. * Enter freight, insurance, entered duty and tax charges, handling, other landed expense and salvage credit actually accounted for. * Select Calculate result. Read the returned values alongside the assumptions below before copying, exporting or acting on the result. ## Why use this tool Spreading total cost across usable inventory avoids making damaged units disappear from the cost calculation. ## Before relying on the result This does not calculate statutory customs or tax rates. Invoice conversion uses your entered exchange quote; unusable whole units round up and credits must not exceed total cost. ## Tool limitations This does not calculate statutory customs or tax rates. Invoice conversion uses your entered exchange quote; unusable whole units round up and credits must not exceed total cost. ## Questions ### Are customs duties or exchange rates looked up? No. Enter your own quoted amounts and rates. The tool does not select statutory charges. ### What should I check before using Landed Cost per Usable Unit Calculator? Check Supplier invoice amount, Source currency label, PKR per source currency unit and Purchased units. Use the exact units shown beside the controls and replace any example values with your own inputs. Source page last modified (UTC): 2026-10-01T18:05:21+00:00 This profile describes the tool. It does not execute it or supply a professional certification.