The first two tables are useful for quickly converting inches to feet, ounces to pounds, or fractions to decimal values. It won’t help you in converting metric to U.S. units or vice versa; see Conversion Factors and Formulas for that information.

Ounces or 16ths, with decimal equivalents
OuncesFractionDecimal
11/16.0625
21/8.125
33/16.1875
41/4.25
55/16.3125
63/8.375
77/16.4375
81/2.5
99/16.5625
105/8.625
1111/16.6875
123/4.75
1313/16.8125
147/8.875
1515/16.9375
Inches or 12ths, with decimal equivalents
InchesFractionDecimal
11/12.0833
21/6.1667
31/4.25
41/3.3333
55/12.4167
61/2.5
77/12.5833
82/3.6667
93/4.75
105/6.8333
1111/12.9167

 

The following tables give decimal equivalents for ninths, sevenths and fifths.

Ninths and decimal equivalents
FractionDecimal
1/9.1111
2/9.2222
1/3.3333
4/9.4444
5/9.5556
2/3.6667
7/9.7778
8/9.8889
Sevenths and decimal equivalents
FractionDecimal
1/7.1429
2/7.2857
3/7.4286
4/7.5714
5/7.7143
6/7.8571

Fifths and decimal equivalents
FractionDecimal
1/5.2
2/5.4
3/5.6
4/5.8