1000 x 52 = 52000
1000 times 52 is 52000. Most people reach this page converting a weekly figure into a yearly one, because a year holds 52 whole weeks. 1000 a week is 52000 a year.
1,000 × 52 = 52,000
Adding 1,000 to itself 52 times gives the same answer.
Why 52 and not 12
A year has 52 complete weeks plus one spare day, two in a leap year. Weekly totals get multiplied by 52; monthly totals get multiplied by 12. The two answers sit far apart: 1000 x 12 is 12000, while 1000 x 52 is 52000. Picking the wrong multiplier is the single most common error in this calculation, and it is off by more than four times.
Doing it in your head
Multiplying by 1000 only shifts the digits three places, so 52 becomes 52000. No long multiplication is needed at all. The same shift takes 100 x 52 to 5200 and 1000 x 365 to 365000.
What 52000 splits into
52 is 4 x 13, so 52000 divides by 13 exactly, giving 4000. It also divides by 4 to give 13000, and that number is useful: a quarter of the year is 13 weeks, so a 52000 annual figure breaks into four quarters of 13000. Very few round-looking numbers carry a 13 inside them, and this one does.