The most accurate way to weigh luggage at home is using a specialized digital handheld luggage scale, which uses a strap or hook to lift the bag and measure it via gravity. These are more precise than bathroom scales because they eliminate "shifting weight" errors. If you don't have one, the "subtraction method" on a standard bathroom scale is a reliable alternative: first, weigh yourself alone, then weigh yourself while holding the suitcase. Subtract your body weight from the total to find the bag's weight. To ensure accuracy, try to stand in the center of the scale and hold the bag close to your body. If the suitcase is too large to hold, you can place a small stool on the scale, "tare" or zero it out, and then balance the bag on top to ensure it isn't touching the floor or nearby walls.