Blade length1.3 m
5.65Wine glass heights
6.84No. 2 pencils
2,600Tardigrade body lengths
Standard Jedi lightsaber blade
The world's least useful encyclopedia

Photo from Wikimedia Commons
The elegant weapon of a Jedi Knight/Pop Culture
The lightsaber is the signature weapon of the Star Wars universe, a plasma blade powered by a kyber crystal and projected from a metal hilt. According to canon, standard blade length is roughly 0.91 to 1.37 meters. The hilt itself is about 25-30 cm long, and the whole assembly weighs very little since the blade is made of contained plasma. Real-world prop sabers weigh about 0.45 kg for the hilt alone.
Standard Jedi lightsaber blade
Typical single-handed hilt
Hilt plus blade
Approximate blade thickness
Real-world prop replica weight
Estimated plasma temperature in-universe