Box Volume and Weight Helper

Free result — no account.

Formula

Volume = L×W×H. DIM uses carrier divisor (show USPS 166 and UPS/FedEx 139).

Worked example

18×12×10 → volume 2160 in³; DIM depends on carrier.

Source & last checked

USPS/UPS/FedEx DIM pages

Last checked: 2026-09-25

FAQ
Is this exact?

No — estimates only. Verify official sources.

Do you store my numbers?

No — it runs in your browser.

Can I embed this?

Yes — use the embed box below.

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