What is 6% of 15? 0.9 6% of 15 Copy 6% of 15 = 0.9. Formula UsedResult = (6 ÷ 100) × 15 = 0.9 Frequently Asked Questions What is 6% of 15?0.9. (6 ÷ 100) × 15 = 0.9.How to calculate 6%?Multiply by 0.06 (or multiply by 6 then divide by 100).