The least a volleyball can weigh is 9.17123 ounces. All you have to do is multiply 260 by the number of ounces in one gram, which is 0.035274. So you multiply 260 by 0.035274, which equals 9.17123 ounces. If you have to round to the nearest hundredth, your answer is 9.17 ounces. If you have to round to the nearest tenth, your answer is 9.2 ounces.