This will help you convert betting odds from Fractional to decimal , most betting sites offer you a choice of displaying them in either format but the betting exchange, Betfair always uses the decimal odds format.
Odds Ladder
Odds Ladder
Fractional Odds
Decimal Odds
Fractional Odds
Decimal Odds
1/100
1.01
1
2.00
1/66
1.015
11/10
2.10
1/50
1.02
6/5
2.20
1/40
1.025
5/4
2.25
1/33
1.03
11/8
2.38
1/28
1.036
6/4
2.50
1/25
1.04
13/8
2.63
1/22
1.045
7/4
2.75
1/20
1.05
15/8
2.88
1/16
1.063
2/1
3.00
1/14
1.071
9/4
3.25
1/12
1.083
5/2
3.50
1/10
1.1
11/4
3.75
2/19
1.105
3/1
4.00
1/9
1.111
10/3
4.33
2/17
1.118
7/2
4.50
1/8
1.125
4/1
5.00
2/15
1.133
9/2
5.50
1/7
1.143
5/1
6.00
2/13
1.154
11/2
6.50
1/6
1.167
6/1
7.00
2/11
1.182
13/2
7.50
1/5
1.2
7/1
8.00
2/9
1.222
15/2
8.50
1/4
1.25
8/1
9.00
2/7
1.286
17/2
9.50
3/10
1.300
9/1
10.00
1/3
1.333
19/2
10.50
4/11
1.364
10/1
11.00
2/5
1.4
12/1
13.00
4/9
1.444
14/1
15.00
1/2
1.5
16/1
17.00
8/15
1.533
20/1
21.00
4/7
1.571
22/1
23.00
8/13
1.615
25/1
26.00
4/6
1.667
28/1
29.00
8/11
1.727
33/1
34.00
4/5
1.8
40/1
41.00
5/6
1.833
50/1
51.00
10/11
1.909
66/1
67.00
1
2.00
100/1
101.00
Copyright
2007. UK Betting Central. All rights reserved.
