How To Measure For Draw Length - Web when the measurement is found (in inches), divide that number by 2.5 and the resulting number will be proper draw length. Web to measure your draw length, start with the formula above: Wingspan in inches divided by 2.5. With many bows, that’s all you. For instance, my wingspan is 72.75. For example, if you have a wingspan of 70. Now, here’s the good news:
Web to measure your draw length, start with the formula above: Now, here’s the good news: Wingspan in inches divided by 2.5. For example, if you have a wingspan of 70. With many bows, that’s all you. Web when the measurement is found (in inches), divide that number by 2.5 and the resulting number will be proper draw length. For instance, my wingspan is 72.75.