Venus’s surface gravity is about 0.91 g relative to Earth. More precisely, Venus’s surface gravity is approximately 0.905 times Earth’s average surface gravity.
That value may seem surprising because Venus is similar to Earth in size, but it is slightly smaller and has only about 81.5% of Earth’s mass. Surface gravity depends on both mass and radius: more mass increases gravitational pull, while a larger radius spreads that pull over a greater distance.
A person weighing 100 kilograms-force on Earth would experience roughly 90.5 kilograms-force at Venus’s surface, ignoring the practical impossibility of standing there unprotected. Their mass would not change; only their weight, the force caused by gravity, would be lower.
Venus’s gravity is much stronger than Mars’s, whose surface gravity is about 0.38 g, and very close to Earth’s. The planet’s atmosphere, however, is dramatically different. Its surface pressure is more than 90 times Earth’s and its temperature is hot enough to melt lead, so similar gravity does not mean similar living conditions.