41/64 as a Decimal 0.640625 41/64 = 0.640625 = 64.0625% Copy 41/64 = 0.640625 = 64.0625%. Formula Used41 ÷ 64 = 0.640625 Frequently Asked Questions What is 41/64 as a decimal?0.640625.What is 41/64 as a percentage?64.0625%.