# Freight calculators

Source: https://ch-shipping.com/tools
Language: en
Description: Free China-shipping calculators: total CBM with rough 20GP/40GP/40HQ container fit, and air chargeable (volumetric) weight using the IATA 6000 divisor. Indicative — confirm on quote.

Free tools

Quick, browser-side estimators for the two numbers shippers ask about most. Indicative only — confirm the exact figure on a live quote.

- [CBM & container fit calculator](https://ch-shipping.com/tools/cbm-calculator)—CBM Enter the carton dimensions and quantity to get total volume (CBM) and a rough idea of how it fits a 20GP, 40GP or 40HQ container. Open tool →
- [Air chargeable weight calculator](https://ch-shipping.com/tools/air-chargeable-weight)—AIR Air freight is billed on the greater of actual and volumetric weight. Enter dimensions and actual weight to see which applies. Open tool →

These calculators run entirely in your browser, give indicative figures only, and never store your data. Always confirm the exact result on a live quote.

## Other free documents

- [Mexico import document checklist What a shipment arriving in Mexico is normally asked for, what only some shipments need, and which authority decides each one. Written for the importer, not the broker.](https://ch-shipping.com/tools/mexico-import-checklist)
- [Colombia import document checklist The paperwork a commercial import into Colombia is normally asked for, which items only apply in some cases, and which authority owns each one.](https://ch-shipping.com/tools/colombia-import-checklist)
- [Freight quote preparation sheet Every field a forwarder needs before a quote is a real number rather than a guess. Fill it in on paper or on screen, then copy it into WhatsApp — nothing here is submitted anywhere.](https://ch-shipping.com/tools/freight-quote-sheet)
- [Packing list preparation guide What each field on a packing list means and what customs reads it for, with a blank layout you can print and hand to the supplier. Generic on purpose — no company, client or transaction data.](https://ch-shipping.com/tools/packing-list-template)

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## Need air or ocean freight from China to the Americas?

Message us on WhatsApp with your origin, destination and timeline. We will come back with a clear, competitive routing — usually within one business day.

[WhatsApp us →](https://wa.me/8618062618852?text=Hi%20Victor%2C%20I%27d%20like%20a%20freight%20quote.%0A%0AOrigin%3A%20%0ADestination%3A%20%0ACargo%20(what%20%2F%20weight%20%2F%20dimensions)%3A%20%0ATarget%20timeline%3A%20) [Email instead](mailto:victor@ch-shipping.com)