Am doing a kichen remodel and I have 100 watts panel with 3 spaces one for the range one for the refrigarator I want to install 12 outlet and 7 reses lighting is this enough circuts or I need to buy a sub panel.

First if this is a remodel, you should already have the space for the stove in your pannel. A stove is normally a 50 amp 220 breaker if it is electric ( not if it is a gas) A 220 stove will take two spaces.

The previos owner move the kitchen to a smaller space in the house is 19by 8 so iwant to move it to the original place with is 12by12. So will hve to put new lighting and out lets.

You will need a subpanel, 12- 16 should be fine. Feed with a 60 Amp feeder, and use for all 120 volt loads. Need at least two 20 amp appliance circuits for the counter, all kitchen outlets are GFI, except reefer. Best the reefer be a separate circuits, and any microwaves, and dishwasher.

You should be able to use a 40 amp range circuit, most besides the larger ones fit fine.

Sorry but what does 12-16 means thank you

Oh sorry, 12 to 16 circuit panel board.