Free tool, no account
Luggage Weight Calculator: Plan Two Bags
Add the weight of two empty bags and the items you have weighed. Move an item from one bag to the other, enter the limits on your ticket and keep a scale allowance. Accessories count too; an unknown weight stays flagged, with no account or data sent.
La valise sous la limite
No inputs sent. Nothing kept after closing unless you download a file.
Worked example
An empty 2 kg bag, three 250 g items and an 800 g toiletry bag total 3.55 kg known. With a chosen 8 kg limit and 0.2 kg scale allowance, cautious headroom is 4.25 kg, subject to any unweighed items.
| Item | Bag | Quantity | Grams each | Total (kg) |
|---|---|---|---|---|
| Weighed garment | A | 3 | 250 | 0.75 |
| Weighed toiletry bag | A | 1 | 800 | 0.8 |
| Weighed pair of shoes | B | 1 | 1000 | 1 |
How to use it
Replace the example with your values and check units. Results update as you edit. Keep a scenario to compare, then export a file; this tool’s JSON can restore your inputs.
Worked example
An empty 2 kg bag, three 250 g items and an 800 g toiletry bag total 3.55 kg known. With a chosen 8 kg limit and 0.2 kg scale allowance, cautious headroom is 4.25 kg, subject to any unweighed items.
Method and sources
A bag’s known total is its empty weight plus quantity × grams for each assigned item. Cautious headroom also subtracts the scale allowance you choose, once per bag. A blank weight is not zero: the number of unknown items remains visible.
Sources checked October 28, 2026.
Starting values are a fictional example. The method and limits below describe what is actually calculated.
Who it is for, and limits
This complements the outfit planner by counting bags, toiletries, devices and other items, not just clothes. It does not know your carrier, fare allowance or the airport scale reading. Check weight, dimensions and battery rules on your booking.
Common questions
Does a blank weight count as zero?
A blank stays unknown. Totals include weighed items only, and the unknown count is shown.
Are limits supplied by an airline?
You enter the limits. Check your fare, route and ticket conditions.
How do I move an item?
Choose A or B on its row; both totals and headroom recalculate.
Where do my inputs go?
They stay on this page. An explicit export keeps data in your chosen file; nothing is saved automatically.
Can I compare and restore a scenario?
Compare keeps up to three scenarios during this session. The JSON download lets you restore a scenario after closing.