Always a hard one mate.
First as a new
tiler you will want to get some jobs under your belt and experience and worry that if you go in too dear that you will not get the job.
Just as a guide here are a few prices :
Plain ceramic tiles, not large format : £18 to £20 per metre plus materials
Large format ceramic tiles ( walls) : £22 per metre plus materials
Porcelain £20 to £28 per metre plus materials - depending upon size, thickness and if they need sealing
Natural stone £30 to £40 per metre plus materials.
Work out a price relating to meterage rate plus materials. Then think about how long it will take you , then work back to convert this into your daily rate. then you can decide if you want to up or lower the price to make your wage.
One word of advice .... don't go in too cheap. This will be no good for your self esteem working for peanuts. The customer will still want a good job doing, so charge to reflect this. Also tilers who work for peanuts and under-cut everyone else are doing the trade a dis-service. I get really annoyed when I hear of tilers working for £80 a day plus materials. If I wanted to earn that I could get a job in a warehouse.
DO A GOOD JOB AT A FAIR PRICE - GET A GOOD REP - AND THE WORK WILL COME