Millimeter/Inch and Decimal/Fraction Conversions Chart ReferenceInchesMillimetersFractionsDecimals1/64.015625.3971/32.03125.7943/64.0468751.1911/16.06251.5885/64.0781251.9843/32.093752.3817/64.1093752.7781/8.1253.1759/64.1406253.5725/32.156253.96911/64.1718754.3663/16.18754.76313/64.2031255.1597/32.218755.55615/64.2343755.9531/4.2506.35017/64.2656256.7479/32.281257.14419/64.2968757.5415/16.31257.93821/64.3281258.33411/32.343758.73123/64.3593759.1283/8.3759.52525/64.3906259.92213/32.4062510.31927/64.42187510.7167/16.437511.11329/64.45312511.50915/32.4687511.90631/64.48437512.3031/2.50012.70033/64.51562513.09717/32.5312513.49435/64.54687513.8919/16.562514.28837/64.57812514.68419/32.5937515.08139/64.60937515.4785/8.62515.87541/64.64062516.27221/32.6562516.66943/64.67187517.06611/16.687517.46345/64.70312517.85923/32.7187518.25647/64.73437518.6533/4.75019.05049/64.76562519.44725/32.7812519.84451/64.79687520.24113/16.812520.63853/64.82812521.03427/32.8437521.43155/64.85937521.8287/8.87522.22557/64.89062522.62229/32.9062523.01959/64.92187523.41615/16.937523.81361/64.95312524.20931/32.9687524.60663/64.98437525.00311.00025.400