Paul Ellis, 56, used gardening gloves and knee pads for the nine-mile route to the top of Wales’s highest mountain.
He said he was “made up” to reach the 3,560ft summit. Paul added: “I enjoyed it actually, it was a good day.
“I did the first three miles in about three hours. The last two miles took me more or less nine hours probably.”
Paul did the crawl for charity Amp Camp, which sends amputee children on holiday.
He said: “I’ve got blisters on my stumps, blisters on my hands. You’re putting your wrist down all the time, so my wrists got quite sore.
“But with all the support of the people on the mountain saying, ‘come on you can do it’, that spurs you on. People are so generous, I ran out of water twice and people gave me water and food as well.”
The father of two, from Widnes, Cheshire, suffered a spinal injury in a fall in 1992, leaving him in terrible pain and unable to stand for more than few minutes at a time. In 2008 he chose to have his legs amputated below the knee to gain more mobility. It was “fantastic” he said.
He added: “I went from not being able to walk at all to climbing mountains. You lose a limb, not a life.”
He spent the night at the top of Snowdon before making the descent on Saturday.
This month he also climbed Ben Nevis with a group of 10 other amputees and has so far raised more than £3,000.
Two members of Amp Camp carried his prosthetic legs up to him and then helped him walk back down.
The first Kids Amp Camp, aimed at building fitness and confidence after an amputation, will pay for six children and their families to go to Tenerife in February.