52-Week Savings Challenge Calculator

About this calculator

The 52-week savings challenge is a popular savings method where you set aside a small deposit in week one and increase it by a fixed amount every week after that, for 52 straight weeks — a common version starts at 1 dollar and adds a dollar each week, ending with a 52-dollar deposit in the final week.

Because the weekly deposits form an arithmetic sequence, the total saved over the year can be calculated directly rather than tallied week by week: it is the sum of 52 terms starting at your chosen amount and growing by your chosen increase. This calculator takes the starting weekly amount and the weekly increase and returns the full 52-week total, making it easy to plan a version of the challenge that fits your budget rather than the standard 1-to-52 pattern.