On the planet Mars, we would weigh only about 1/3 of our weight on Earth. Mars has a smaller mass and lower gravitational force compared to Earth. The gravitational acceleration on Mars is approximately 3.71 meters per second squared (m/s²), which is about 0.38 times the gravitational acceleration on Earth (9.81 m/s²). As a result, objects, including humans, would experience about 1/3 of their weight on Mars compared to what they weigh on Earth.