What is 70% of 20? 14 70% of 20 Copy 70% of 20 = 14. Formula UsedResult = (70 ÷ 100) × 20 = 14 Frequently Asked Questions What is 70% of 20?14. (70 ÷ 100) × 20 = 14.How to calculate 70%?Multiply by 0.7 (or multiply by 70 then divide by 100).