Likewise, can I measure my height with my phone? Then, use the ruler to measure the distance from the floor to the mark. Stand up straight with your back against the wall and have someone mark the wall right above your head with a pencil. Get a tape measure and measure the distance from the floor to the mark you made on the wall, and voila!īeside above, how can you measure your height without a ruler? If you don't have a measuring tape, you can use a regular ruler to measure your height. Then, use the pencil to mark where the highest point on the top of your head meets the wall. To measure your height by yourself, start by grabbing a pencil and standing with your back against a wall. Simply so, how can I measure my height at home?