Measure your object with a tape measure, and write down the measurement. Measure twice to ensure accuracy.
Convert feet into inches by multiplying the measured length in feet by the number 12 --- because there are 12 inches in one foot --- and then add on any remaining inches after you've multiplied the number. For example, if your object is 5 feet 3 inches long, your math problem would like look (5 x 12) + 3 = 63 inches.
Convert inches into feet by dividing the total inches by the number 12 and then add on the remaining inches as a whole. For example, if your object is 100 inches long, your math problem would look like 100 ÷ 12 = 8 remainder 4, meaning 100 inches is 8 feet, 4 inches long.
Weigh your object and write down the amount.
Convert ounces into pounds by dividing the measurement by the number 16, because there are 16 ounces in 1 pound. For example, if your object weighed 32 ounces, your math problem would be 32 ÷ 16 = 2. If the object weighed 34 ounces, you would add on the remaining 2 ounces, indicating that it weighed 2 pounds, 2 ounces.
Convert pounds into ounces by multiplying the number by 16. For example, if your object is 5 pounds, it weighs 80 ounces because 5 x 16 = 80.