Calculate ERA for 27 Innings Pitched

What's the Earned Run Average (ERA) of a pitcher who throws 27 innings? Just enter the runs allowed and hit the calculate button.
Innings
Runs
ERA is the number of earned runs allowed per nine innings pitched.
If a pitcher allows 14 runs in 27 innings:
ERA = 4.67
ERA for 27 Innings Pitched
Based on runs allowed
Earned Runs ERA
1 0.33
2 0.67
3 1.00
4 1.33
5 1.67
6 2.00
7 2.33
Earned Runs ERA
8 2.67
9 3.00
10 3.33
11 3.67
12 4.00
13 4.33
14 4.67
Earned Runs ERA
15 5.00
16 5.33
17 5.67
18 6.00
19 6.33
20 6.67
21 7.00
Earned Runs ERA
22 7.33
23 7.67
24 8.00
25 8.33
26 8.67
27 9.00