I do martial arts. how long do broken toes take to heal?

6 weeks: For bone to heal. Swelling usually lasts longer. I would wait at least 6 weeks before kicking again. Consult with a podiatrist for evaluation and to have questions answered.

Typically 6-8 weeks: Broken bone typically take 6-8 weeks to heal, but that is if they are properly treated with immobilization and rest. Without this, you risk delaying the healing because of movement.