I’m after a website or map that will show me what places are 45 minutes from two different locations- I’ve no idea what to put into google, but surely this exists?

Thanks!

Tricky. Not sure how it would work, because of varying parameters, like form of transport, route type, average speed, etc. Forty five minutes on a bike on Tarmac would be around nine miles, but prolly six off road, and just over two miles on foot, for example.
You could work it out yourself, using the same approximate speeds as I used, three mph on foot on Tarmac, two off road, I average twelve mph on a mountain bike on road, drop that to about eight or nine off road, and perhaps thirty -thirty five miles in a car.
Those are very approximate speeds based on an averagely fit 57 year old bloke!