I suggest not to do it. Converting your bitcoin to ethereum is a bad idea because these two coins are highly stable coin in the market and worth holding. If you have enough money in your pocket why not buying another investment like ethereum? And if you dont have enough money, better to stay in bitcoin because it will give you profit.
Agree. If you want to invest in ethereum , its better to hold your bitcoin and at the same time buy some ethereum so you can have 2 investment at the same time and if you sell bitcoin just to invest in ethereum I think that you will lose some money since the value is difference. Bitcoin has more value than ethereum.