Add different carton sizes
Enter packed length, width, height and carton count for each type. Use centimeters or inches; add optional gross weight in kilograms or pounds.
iPhone app · Help & support
Supplymo CBM Calculator
Calculate mixed-carton volume, keep your measurements on your iPhone, and share a simple summary. The app works offline with no login.
Version 1.0 · iOS 26 or later · App Store release in preparation
Keep calculations on your iPhone
Save a named calculation, open it again, edit the values and save. No account is needed. Unsaved edits are not retained after closing the app.
Share a clear summary
Use the iOS share sheet to copy or send a text summary to a destination you choose. Your calculation is not automatically sent to Supplymo.
Using the app
How do I measure a carton?
Use the outside dimensions of the packed carton, including packaging. Add a separate carton type whenever dimensions or per-carton weight differ. Measure the finished carton before relying on the result.
How is CBM calculated?
For centimeters: length × width × height × carton count ÷ 1,000,000. For example, 60 × 40 × 30 cm and 10 cartons gives 0.72 m³. At 12 kg per carton, gross weight is 120 kg. These are illustrative inputs, not a freight quote.
What happens when I change units?
The app reinterprets the numbers in the selected unit; it does not convert the text you entered. Choose units that match your measurements. Decimal points or decimal commas are supported, but thousands separators are not.
Why is total weight missing?
Every carton type needs a valid positive per-carton weight before the app shows total gross weight. Blank weights are unknown, not zero. Nonempty invalid values need to be corrected before saving or sharing.
How do I edit or delete a saved calculation?
Open Saved, choose the calculation, edit its name or numbers and tap Save calculation. To delete, swipe left on the saved row, tap Delete and confirm. Deleted items have no in-app recovery. New starts a separate calculation after confirmation.
What if a saved file cannot be opened?
The app preserves an unreadable file and displays a storage error instead of overwriting it. Contact support before reinstalling or deleting app data. Reinstalling can remove local records; there is no Supplymo cloud copy.
Does this calculate freight or container fit?
No. It adds carton volumes and entered gross weights. Pallet space, loading gaps, volumetric weight, chargeable weight and shipping prices are outside the app. Confirm the final packing and carrier quote separately.
Need help?
Email bobby@supplymo.com with your iPhone model, iOS version, app version and steps to reproduce the issue. If useful, include example numbers or a screenshot with private information removed. Do not send passwords, payment details or confidential supplier documents.