Two weeks.
Carry-on.
The internet says it cannot work.
People who do it say it does.
The math says yes if you stop counting days and start counting laundry stops.
TL;DR Carry-on only for 2 weeks works because clothing volume does not scale with trip length once laundry enters the equation. Pack 4 days of clothes, wash twice, you cover 14 days.
From the comments I get on every video, I have done multi-week carry-on trips through Asia, Europe, and the Americas. The pattern is the same.
The 2-week carry-on math.
Pack 4 to 5 days of clothes: 5 tops, 3 bottoms, 5 underwear, 5 socks, 1 layer, 1 dressy if needed.
Day 4: sink wash, hang to dry overnight.
Day 8: second sink wash.
You just covered 14 days with the same clothes you would have packed for 5.
What the laundry actually takes.
15 minutes at a hotel sink with hand soap. Hang on the shower rod or AC vent.
Quick-dry fabrics (merino, synthetic blends) dry overnight. Cotton needs 24 hours.
That single 15-minute task is what makes 2 weeks fit a 5-day pack.
What you also bring.
Toiletries decanted to 100 ml or less. Electronics consolidated to 1 device + 1 charger. 2 pairs of shoes (one worn).
All fits in a standard 22 x 14 x 9 inch carry-on with room.
The system that runs it.
The 10-step Space-Saving Travel Packing Method I built over those 12+ years of traveling half the year handles 2-week trips with the same structure as 4-day trips.
Just adds the laundry rhythm.
2 weeks is possible. Sink wash is the unlock.
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2 weeks fits. Laundry is the unlock. The bag is irrelevant.
12-year nomad, carry-on-only traveler across 5 continents, and creator of Organizing.TV.
I help you pack smaller, stress less, and actually enjoy the packing part of travel.