What is 20% of 50? 10 20% of 50 Copy 20% of 50 = 10. Formula UsedResult = (20 ÷ 100) × 50 = 10 Frequently Asked Questions What is 20% of 50?10. (20 ÷ 100) × 50 = 10.How to calculate 20%?Multiply by 0.2 (or multiply by 20 then divide by 100).