My hands are already rulers: Distance from tip of thumb to tip of pinky = 9 inches when fully spread. Distance from base of thumb to tip of index finger = 6 i

My hands are already rulers: Distance from tip of thumb to tip of pinky = 9 inches when fully spread. Distance from base of thumb to tip of index finger = 6 inches when thumb is at right angle. Combine two hands to measure a foot. Max spread between second and third fingers = 3 inches.