One big calc for the rest of the demons. Galamoth in Kid Dracula runs away from the universe in a short timeframe. This is also lined up with the original Japanese.
がラモスキング倒してフェードアウト後 地球を中じとた宇宙。 星はOBJ
After Galamoth is defeated and fades out of the Earth in the middle of the universe. The star is OBJ.
While we don't have an exact clip for this particular scene due to hardware limitations, we do have this back to back comparison shots of the opening and ending cinematics. And in the opening cinematic it takes approximately 15 seconds to end. So that will be our timeframe.
The distance between Earth and the end of the universe is 46.5 billion light years.
Converting that to meters gives us 439,923,966,975,000,000,000,000,000 meters.
439,923,966,975,000,000,000,000,000/15 = 29,328,264,470,000,000,000,000,000 meters per second.
Light speed is around 299,800,000 meters per second.
29,328,264,470,000,000,000,000,000/299,800,000 = 97,826,098,970,000,000 times the speed of light, or over 97 Quadrillions of times the Speed of Light
Massively FTL+
Rather consistent for the series as Galamoth can also fly past stars during his boss fight rather easily.