Tom Rainey and Lawrence Walters, both aged 23, left New York on May 3 in their 24-foot boat named Yves, bound for Britain.
They landed in Devon 93 days later after rowing for 3,800 miles.
The Ocean Rowing Society described the route as the longest and most difficult of the Atlantic crossing records.
The first thing they did after they got out of the boat was to eat a bacon sandwich, according to a report by BBC News.
Rainey said it was "scary the first time" the boat capsized but the pair then "got used to it."
Suffering from the constant damp, sea sickness, tendonitis and salt sores as well as the routine aches and pains of 12 hours of rowing each, per day, Rainey and Walters also had to contend with rationing their food and had less than one day of supplies remaining on arrival.
The duo was welcomed by hundreds of family and friends and thousands of supporters having completed the arduous feat during which they have raised more than $105,000 so far for the Brain Tumour Charity, according to Ocean Signal, which sponsored the duo and provided them with a SafeSea EPIRB and two rescueME PLB1s.