I'm not the only one getting a bit peeved at those asking "how much should i charge", or "Whats the latest mileage rate"
There are, on this forum alone, at least a dozen such threads, not to mention the dozens of other forums on the internet so my advice if you really have to ask is... Look at what's already been written
Also I have to say why are you asking?
You have a product...in this case it's you
You know how much you costs...fuel, insurance, roadtax, cost of vehicle,cost of satnav, phone, website if applicable, laptop and can therefore suss out how much per mile your costs are for your product
All you then have to decide is what margin you need to make (bear in mind you only charge one way, you'll be amazed how many people forget this little gem)
If you find that figure is £2 per mile then you need to find another product as you'll have overpriced yourself out of this market (unless you feel a courier SHOULD in fact be driving around in a rolls or bentley, and we've got it all wrong)
If you think you can sell your product at 50p per mile then you will go bust (as will the 20 year old rust bucket you are undoubtedly driving to survive at this rate)