名稱Designation

0"

1"

2"

3"

4"

5"

6"

分數Fraction

小數Decimal

分厘毛朱

0"

0"



25.4000

50.8000

76.2000

101.6000

127.0000

152.4000

1/64

0.015625

125

0.3969

25.7969

51.1969

76.5969

101.9969

127.3969

152.7969

1/32

0.031250

250

0.7938

26.1938

51.5938

76.9938

102.3938

127.7938

153.1938

3/64

0.046785

375

1.1906

26.5906

51.9906

77.3906

102.7906

128.1906

153.5906

1/16

0.062500

500

1.5875

26.9875

52.3875

77.7875

103.1875

128.5875

153.9875

5/64

0.078125

625

1.9844

27.3844

52.7844

78.1844

103.5844

128.9844

154.3844

3/32

0.093750

750

2.3813

27.7813

53.1813

78.5813

103.9813

129.3813

154.7813

7/64

0.109375

875

2.7781

28.1781

53.5781

78.9781

104.3781

129.7781

155.1781

1/8

0.125000

1000

3.1750

28.5750

53.9750

79.3750

104.7750

130.1750

155.5750

9/64

0.140625

1125

3.5719

28.9719

54.3719

79.7719

105.1719

130.5719

155.9719

5/32

0.156250

1250

3.9688

29.3688

54.7688

80.1688

105.5688

130.9688

156.3688

11/64

0.171875

1375

4.3656

29.7656

55.1656

80.5656

105.9656

131.3656

156.7656

3/16

0.187500

1500

4.7625

30.1625

55.5625

80.9625

106.3625

131.7625

157.1625

13/64

0.203125

1625

5.1594

30.5594

55.9594

81.3594

106.7594

132.1594

157.5594

7/32

0.218750

1750

5.5563

30.9563

56.3563

81.7563

107.1563

132.5563

157.9563

15/64

0.234375

1875

5.9531

31.3531

56.7531

82.1531

107.5531

132.9531

158.3531

1/4

0.250000

2000

6.3500

31.7500

57.1500

82.5500

107.9500

133.3500

158.7500

17/64

0.265625

2125

6.7469

32.1469

57.5469

82.9469

108.3469

133.7469

159.1469

9/32

0.281250

2250

7.1438

32.5438

57.9438

83.3438

108.7438

134.1438

159.5438

19/64

0.296875

2375

7.5406

32.9406

58.3406

83.7406

109.1406

134.5406

159.9406

5/16

0.312500

2500

7.9375

33.3375

58.7375

84.1375

109.5375

134.9375

160.3375

21/64

0.328125

2625

8.3344

33.7344

59.1344

84.5344

109.9344

135.3344

160.7344

11/32

0.343750

2750

8.7313

34.1313

59.5313

84.9313

110.3313

135.7313

161.1313

23/64

0.359375

2875

8.1281

34.5281

59.9281

85.3281

110.7281

136.1281

161.5281

3/8

0.375000

3000

8.5250

34.9250

60.3250

85.7250

111.1250

136.5250

161.9250

25/64

0.390625

3125

9.9219

95.3219

60.7219

86.1219

111.5219

136.9219

162.3219

13/32

0.406250

3250

10.3188

35.7188

61.1188

86.5188

111.9188

137.3188

162.7188

27/64

0.421875

3375

10.7156

36.1156

61.5156

86.9156

112.3156

137.7156

163.1156

7/16

0.437500

3500

11.1125

36.5125

61.9125

87.3125

112.7125

138.1125

163.5125

29/64

0.453125

3625

11.5094

36.9094

62.3094

87.7094

113.1094

138.5094

163.9094

15/32

0.468750

3750

11.9063

37.3063

62.7063

88.1063

113.5063

138.9063

164.3036

31/64

0.484375

3875

12.3031

37.7031

63.1031

88.5031

113.9031

139.3031

164.7031

1/2

0.500000

4000

12.7000

38.1000

63.5000

88.0000

114.3000

139.7000

165.1000

33/64

0.515625

4125

13.0969

38.4969

63.8969

89.2969

114.6969

140.0969

165.4969

17/32

0.531250

4250

13.4938

38.8938

64.2938

89.6938

115.0938

140.4938

165.8938

35/64

0.546875

4375

13.8906

39.2906

64.6906

90.0906

115.4906

140.8906

166.2906

9/16

0.562500

4500

14.2875

39.6875

65.0375

90.4875

115.8875

141.2875

166.6875

37/64

0.578125

4625

14.6844

40.0844

65.4844

90.8844

116.2844

141.6844

167.0844

19/32

0.593750

4750

15.0813

40.4813

65.8813

91.2813

116.6813

142.0813

167.4813

39/64

0.609375

4875

15.4781

40.8781

66.2781

91.6781

117.0781

142.4781

167.8781

5/8

0.625000

5000

15.8750

41.2750

66.6750

92.0750

117.4750

142.8750

168.2750

41/64

0.640625

5125

16.2719

41.6719

67.0719

92.4719

117.8719

143.2719

168.6719

21/32

0.656250

5250

16.6688

42.0688

67.4688

92.8688

118.2688

143.6688

169.0688

43/64

0.671875

5375

17.0656

42.4656

67.8656

93.2656

118.6656

144.0656

169.4656

11/16

0.687500

5500

17.4625

42.8625

68.2625

93.6625

119.0625

144.4625

169.8625

45/64

0.703125

5625

17.8594

43.2594

68.6594

94.0594

119.4594

144.8594

170.2594

23/32

0.718750

5750

18.2563

43.6563

69.0563

94.4563

119.8563

145.2563

170.6563

47/64

0.734375

5875

18.6531

44.0531

69.4531

94.8531

120.2531

145.6531

171.0531

3/4

0.750000

6000

19.0500

44.4500

69.8500

95.2500

120.6500

146.0500

171.4500

49/64

0.765625

6125

19.4469

44.8469

70.2469

95.6469

121.0469

146.4468

171.8469

25/32

0.781250

6250

19.8438

45.2438

70.6438

96.0438

121.4438

146.8438

172.2438

51/64

0.796875

6375

20.2406

45.6406

71.0406

96.4406

121.8406

147.2406

172.6406

13/16

0.812500

6500

20.6375

46.0375

71.4375

96.8375

122.2375

147.6375

173.0375

53/64

0.828125

6625

21.0344

46.4344

71.8344

97.2344

122.6344

148.0344

173.4344

27/32

0.843750

6750

21.4313

46.8313

72.2313

97.6313

123.0313

148.4313

173.8313

55/64

0.859385

6875

21.8281

47.2281

72.6281

98.0281

123.4281

148.8281

174.2281

7/8

0.875000

7000

22.2250

47.6250

73.0250

98.4250

123.8250

149.2250

174.6250

57/64

0.890625

7125

22.6219

48.0219

73.4219

98.8219

124.2219

149.6219

175.0219

29/32

0.906250

7250

23.0188

48.4188

73.8188

99.2188

124.6188

150.0188

175.4188

59/64

0.921875

7375

23.4156

48.8156

74.2156

99.6156

125.0156

150.4156

175.8156

15/16

0.937500

7500

23.8125

49.2125

74.6125

100.0125

125.4125

150.8125

176.2125

61/64

0.953125

7625

24.2094

49.6094

75.0094

100.4094

125.8094

161.2094

176.6094

31/32

0.968750

7750

24.6063

50.0063

75.4063

100.8063

126.2063

151.6063

177.0063

63/64

0.984375

7875

25.0031

50.4031

75.8031

101.2031

126.6031

152.0031

177.4031

.1英吋:25.4000mm .1inch:25.4000mm