Inventory Reorder Point Calculator
Know when to reorder before stock runs out.
Open toolStock and freight
Inventory, Freight and Logistics Calculators
Translate supplier lead times, demand and shipment charges into stock and freight decisions while keeping variable carrier and customs rates explicit.
Calculators
Choose the calculation you need
Every tool includes its formula, assumptions and practical limits.
Safety Stock Calculator
Estimate buffer stock using max and average demand and lead time.
Open toolEconomic Order Quantity Calculator
Balance ordering and holding costs to estimate ideal order quantity.
Open toolInventory Turnover Calculator
Measure how many times inventory is sold and replaced.
Open toolLanded Cost Calculator
Estimate total delivered cost including freight, duties and handling.
Open toolDimensional Weight Calculator
Compare package dimensional weight with actual weight.
Open toolImport Duty & Landed Cost Calculator by HS Code
Estimate customs duty, import tax and landed cost for any origin and destination after verifying the HS code and tariff rate.
Open toolGuides
Understand the decision
Learn how to apply the formula to a real seller decision.
Etsy seller profitEtsy Fees, Profit and Pricing: A Practical Seller GuideBuild an Etsy price from real order economics instead of subtracting one headline fee from revenue.→Customs and logisticsHS Codes, Import Duty and Landed Cost for E-commerceUnderstand what an HS code can and cannot tell you before estimating customs duty, import tax and product landed cost.→PricingMargin vs. Markup: The Pricing Difference Sellers Must KnowA practical explanation of why a 50% markup is not a 50% margin, with examples for small sellers.→E-commerceHow to Calculate True Profit per OrderA step-by-step order profit method that includes product cost, shipping, ad spend, platform fees and returns.→