How to Save $5,000 in 26 Weeks: Free Envelope Challenge Calculator Quick answer: To save $5,000 in 26 weeks, you need to average approximately $192.31 per week. You do not have to save exactly the same amount every week. The envelope challenge below uses a progressive 26-week schedule that totals exactly $5,000. Saving $5,000 in … Continue reading How to Save $5,000 in 26 Weeks: Free Envelope Challenge Calculator