Ряды предпочтительных чисел безграничны. Чтобы продолжить ряд чисел следует умножить или делить члены ряда на 10, 100, 1000 и т.д.
Ряд R5: 1, 1.6, 2.5, 4, 6.3, 10
Ряд R10: 1, 1.25, 1.6, 2, 2.5, 3.15, 4, 5, 6.3, 8, 10
Ряд R20: 1, 1.12, 1.25, 1.4, 1.6, 1.8, 2, 2.24, 2.5, 2.8, 3.15, 3.55, 4, 4.5, 5, 5.6, 6.3, 7.1, 8, 9, 10
Ряд R40: 1, 1.06, 1.12, 1.18, 1.25, 1.32, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.12, 2.24, 2.36, 2.5, 2.65, 2.8, 3, 3.15, 3.35, 3.55, 3.75, 4, 4.25, 4.5, 4.75, 5, 5.3, 5.6, 6, 6.3, 6.7, 7.1, 7.5, 8, 8.5, 9, 9.5, 10
Ряд R80: 1, 1.03, 1.06, 1.09, 1.12, 1.15, 1.18, 1.22, 1.25, 1.28, 1.32, 1.36, 1.4, 1.45, 1.5, 1.55, 1.6, 1.65, 1.7, 1.75, 1.8, 1.85, 1.9, 1.95, 2, 2.06, 2.12, 2.18, 2.24, 2.3, 2.36, 2.43, 2.5, 2.58, 2.65, 2.72, 2.8, 2.9, 3, 3.07, 3.15, 3.25, 3.35, 3.45, 3.55, 3.65, 3.75, 3.87, 4, 4.12, 4.25, 4.37, 4.5, 4.62, 4.75, 4.87, 5, 5.15, 5.3, 5.45, 5.6, 5.8, 6, 6.15, 6.3, 6.5, 6.7, 6.9, 7.1, 7.3, 7.5, 7.75, 8, 8.25, 8.5, 8.75, 9, 9.25, 9.5, 9.75, 10
Ряд R160: 1, 1.015, 1.03, 1.045, 1.06, 1.075, 1.09, 1.105, 1.12, 1.135, 1.15, 1.165, 1.18, 1.19 1.22, 1.23, 1.25, 1.265, 1.28, 1.3, 1.32, 1.34, 1.36, 1.38, 1.4, 1.425, 1.45, 1.475, 1.5, 1.525, 1.55, 1.575, 1.6, 1.625, 1.65, 1.675, 1.7, 1.725, 1.75, 1.775, 1.8, 1.825, 1.85, 1.875, 1.9, 1.925, 1.95, 1.975, 2, 2.03, 2.06, 2.09, 2.12, 2.15, 2.18, 2.21, 2.24, 2.27, 2.3, 2.33, 2.36, 2.395, 2.43, 2.465, 2.5, 2.54, 2.58, 2.615, 2.65, 2.685, 2.72, 2.76, 2.8, 2.85, 2.9, 2.95, 3, 3.035 3.07, 3.11, 3.15, 3.2, 3.25, 3.3, 3.35, 3.4, 3.45, 3.5, 3.55, 3.6, 3.65, 3.7, 3.75, 3.81, 3.87, 3.935, 4, 4.06, 4.12, 4.185, 4.25, 4.315, 4.37, 4.44, 4.5, 4.56, 4.62, 4.685, 4.75, 4.815, 4.87, 4.93, 5, 5.075, 5.15, 5.225, 5.3, 5.375, 5.45, 5.525, 5.6, 5.7, 5.8, 5.9, 6, 6.075 6.15, 6.225, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.625, 7.75, 7.875, 8, 8.125, 8.25, 8.375, 8.5, 8.625, 8.75, 8.875, 9, 9.125, 9.25, 9.375, 9.5, 9.625, 9.75, 9.875, 10