58/100 as a Decimal 0.58 58/100 = 0.58 = 58% Copy 58/100 = 0.58 = 58%. Simplified: 29/50. Formula Used58 ÷ 100 = 0.58 Frequently Asked Questions What is 58/100 as a decimal?0.58.What is 58/100 as a percentage?58%.