What is 3% of 10? 0.3 3% of 10 Copy 3% of 10 = 0.3. Formula UsedResult = (3 ÷ 100) × 10 = 0.3 Frequently Asked Questions What is 3% of 10?0.3. (3 ÷ 100) × 10 = 0.3.How to calculate 3%?Multiply by 0.03 (or multiply by 3 then divide by 100).