Free tools for cross-border sellers and importers
Calculate shipping weight, look up HS codes and duties, convert currencies and prepare marketplace images. No sign-up needed.
- No sign-up for free tools
- Images are processed in your browser
- Reference data with as-of dates
All tools
Volumetric weight
Carriers bill the greater of actual weight and volumetric weight. Enter your carton size and weight to see the chargeable weight in seconds.
Unit converter
Product specs, carton sizes and freight quotes rarely use the same units. Convert length, weight, volume, area and temperature in one place.
Currency converter
Price products, check supplier quotes and estimate payouts. Add the spread or fee your payment provider charges to see a realistic result.
Time zones
Know when your supplier is at their desk and when your buyer is asleep. Add the cities you work with and convert any date and time.
Country codes
Look up the two-letter code, three-letter code and calling code of any country or region. The full table is below the search box.
HS code lookup
Type a product name (English or Chinese) or a code. Get the 6-digit HS reference, classification notes, and one-click links to US and EU tariff look-ups.
US tariff
Enter an HTS code, pick the country of origin and the goods value. See the base rate, Section 301 lines and an estimated total duty.
EU duty & VAT
Enter goods value, shipping, duty rate and destination country to estimate duty, import VAT and total landed cost. Jump to TARIC or Access2Markets with your code prefilled.
Postal code lookup
Check that a customer's ZIP or postcode matches the city before you ship. Pick a country, type the code, see the place.
Image resizer
Tick the marketplaces you sell on and drop in your photo. You get the exact pixel size and a file small enough for each platform. Images never leave your device.
Image size requirements by marketplace
AmazonWalmarteBayTemuAliExpressShopeeTikTok ShopLazadaShopify
Need more? Pro adds bulk, export, API and policy alerts
Run hundreds of SKUs at once, export results, call our API and get an email when tariff or platform rules change.
Guides
How to Calculate Volumetric WeightA bulky, light parcel can cost more to ship than a small, heavy one. Volumetric weight is how carriers price that space.Volumetric Weight Divisors ExplainedThe divisor decides how expensive your bulky cargo is. A larger divisor is friendlier to light, bulky goods.How to Find the HS Code for Your ProductGetting the code right avoids delays, penalties and wrong duty estimates. Here is a method sellers can follow.Landed Cost Formula for Cross-border SellersLanded cost is the real cost of getting a product to the customer's country. Price from it, not from the factory price.
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