Free Inventory Unit Converter
Weight, volume, length & packing units
Convert between kg and lb, litre and gallon, cm and inch, carton and pieces — instantly. Covers 5 categories and 35+ units with a full conversion table for every entry.
What Is an Inventory Unit Converter?
An Inventory Unit Converter helps you quickly convert between measurement units used in stock management, purchasing, and logistics. Inventory systems often receive data in mixed units — suppliers quote in kilograms while your system uses pounds, or import documentation uses US gallons while your warehouse tracks litres. This tool covers the five most common conversion categories for inventory: Weight (kg, lb, g, tonne, quintal), Volume (litre, gallon, mL, m³), Length (cm, inch, m, foot), Area (m², ft², acre), and Packing units (pieces, dozens, cartons, gross).
How to Convert Inventory Units in 3 Steps
Step 1 — Select a Category
Choose from Weight (kg, lb, g, tonne), Volume (litre, gallon, mL), Length (cm, inch, metre, foot), Area (m², ft², acre), or Packing (pieces, dozen, carton sizes).
Step 2 — Choose From and To Units
Select the unit you want to convert from, then the unit you want to convert to. Click the swap button to reverse the direction instantly.
Step 3 — Enter the Value
Type the quantity you want to convert. The result updates instantly, and a full conversion table shows the value in every unit in that category simultaneously.
Who Uses This Inventory Unit Converter?
Import & Export Businesses
Convert between metric and imperial units when dealing with international suppliers using different measurement systems.
Warehouse & Logistics Teams
Convert carton quantities to piece counts for accurate stock counting, put-away, and pick-and-pack operations.
Food & Beverage Manufacturers
Convert between litres, gallons, and millilitres when scaling recipes or managing ingredient procurement across different suppliers.
E-commerce & Retail Sellers
Convert product dimensions and weights between cm/kg and inch/lb for multi-market product listings on Amazon or Flipkart.
Frequently Asked Questions
How do I convert kg to lb?
1 kilogram = 2.20462 pounds. Select the Weight category, choose Kilogram as the From unit and Pound as the To unit, then enter your value. The converter also shows the result in grams, ounces, tonnes, and quintals simultaneously.
How do I convert litres to gallons?
1 litre = 0.264172 US gallons or 0.219969 UK gallons. Select the Volume category and choose Litre → Gallon (US) or Gallon (UK). The full table shows all volume conversions at once.
How do I convert cartons to pieces?
Select the Packing/Quantity category and choose the carton size that matches your packaging (12, 24, or 48 pieces per carton). Enter the number of cartons to get total pieces, or vice versa.
Why are there two gallon options?
US gallon = 3.78541 litres. UK (Imperial) gallon = 4.54609 litres. They are different measurements despite sharing the same name. For most international trade, US gallons are the default; for UK and Commonwealth markets, use UK gallons.
Can I convert packing units like dozens or gross?
Yes. The Packing/Quantity category includes pieces, dozen (12 pcs), gross (144 pcs), and multiple carton sizes (6, 12, 24, 48 pieces). This is useful for purchase orders, pricing per unit, and stock reconciliation.
Is this unit converter free?
Yes, fully free. No account or sign-up required.