Its simply math that doesn't require a web program.
There are 128 oz of gasoline to gallon.
If you want a 32:1 RATIO (31 PARTS OF GAS TO 1 PART OF GASOLINE), Divide 128 by 32 to get the desired amount of oil per gallon.
If you want 50:1 Ratio, divide 128 by 50 to get the desired amount of oil per gallon.
If you want 20:1 Ratio, devide 128 by 20 to get the desired amount of oil per gallon.
Simple math that is quicker than logging onto a webpage with dialup modem.
