Is there a way to read and calculate Brewery OG numbers?

[StarCityBrewMaster]

When I look up Brewery websites for beers that I like to drink, a lot of them list all the ingredients used to make that beer which is very helpful. I'm able to get the grain bill, hops, IBUs, Abv, and sometimes even color.

A lot will also list their OG and FG readings but there always different then anything I've ever seen. For example our numbers look like: 1.048, 1.060 - their number are like 12.6, 13.4 with FG readings like 2.2.

I assume the numbers are just different and much higher due to the fact that they're brewing much larger amounts for distribution purposes but I am wondering if there is a way to convert such numbers to help formulate clone recipes more accurately?

 

[Ace_Club]

Those are express in degrees Plato. See below.

Degrees Plato to Gravity Conversion
{Plato/(258.6-([Plato/258.2]*227.1)}+1 = Specific gravity

Plato Gravity
1 1.004
2 1.008
3 1.012
4 1.016
5 1.020
6 1.024
7 1.028
8 1.032
9 1.036
10 1.040
11 1.044
12 1.048
13 1.053
14 1.057
15 1.061
16 1.065
17 1.070
18 1.074
19 1.079
20 1.083
21 1.087
22 1.092
23 1.096
24 1.101
25 1.106
26 1.110
27 1.115

 

[Ace_Club]

Often, you can just multiply Plato by 4 to get a quick, close approximation of SG.