I just entered my weight over the last two years into my slimming world online account.
One stone = 14 pounds or 6.35kg.
It took me seven weeks to lose a stone.
It took me four months to lose my second stone.
It took me three months to lose my third stone.
It took me five months to lose my fourth stone.
I was stuck in a plateau for five months, and in the last three weeks have lost 6½ pounds.
Long story short: it's much easier in the beginning!