how many watts is a weapon laser weapon

Laser weapons are usually measured in watts or kilowatts, and the answer depends on the kind of laser. Small or prototype systems can be around 10 kW to 50 kW ; military-grade systems have also been reported around 30 kW, 50 kW, 60 kW, and above 100 kW in some demonstrations.

For very rough context:

• 1 watt is tiny.
• 1 kilowatt = 1,000 watts.
• Tactical weapon lasers often sit in the tens of kilowatts.
• Larger or experimental systems can reach hundreds of kilowatts or more.

If you mean a sci-fi “laser gun,” there’s no real standard, but online discussions often guess everything from a few hundred watts for a handheld version to much higher outputs for ship-mounted weapons.