How do you weigh yourself on a scale whose maximum reading is less than your weight?

Answer 1

The simple answer is: You can't.

But I can propose a way to do it. It may not be perfectly accurate,

but it's bullet-proof and air-tight in principle:

-- Get a board of substantial length, like a piece of shelf material.

Also get a little block of wood, same thickness as the height of the scale.

-- Set the board down level, with one end on the little block, and the

other end on the scale.

-- Stand exactly on the center of the board.

You've created a Class-III lever with a mechanical advantage of 1/2 .

The fulcrum in on the little block, your weight in the center is the effort,

and the load is the end on the scale.

The scale bears 1/2 of your weight.

Answer 2

You can use a technique called "balancing scale method." First, stand on the scale and note its reading. Next, hold onto a stable object like a wall or railing and slowly lift one leg off the scale while keeping your body balanced using the wall for support. The difference between the two readings will give you an estimate of your weight.