Challenge Cost Calculator
Estimate the total cost of finishing a 75-day challenge in under a minute. Plug in your gym, food, supplements, books, and gear to see your full budget.
Challenge Cost Calculator
Gym & Workouts
Set to 0 for home or outdoor-only workouts.
Meal Plan Style
Supplements & Books
One-Time Costs
Phone storage, photo printer, accountability programs.
Breakdown by category
Ways to save
75 days is roughly 2.5 months (75 / 30). Recurring costs are scaled by 2.5; one-time costs are added once.
How much does a 75-day challenge actually cost?
The official program is free. The cost lives in the lifestyle, not the rules. Most people spend somewhere between $400 and $1,500 over 75 days, depending on how much they outsource to gyms, supplements, and meal kits.
A lean run looks like this: outdoor workouts and a home setup, around $300/mo in clean-eating groceries, a basic supplement stack, library books, and shoes you already own. Total comes in near $650.
A moderate run usually adds a $40 to $60 gym membership, a $500/mo grocery plan, $40/mo of supplements, and one or two new pairs of training clothes. Total lands around $1,400 to $1,600.
Where the money actually goes
Gym: Optional. The rules require one outdoor workout per day, so the second can be bodyweight or a home setup. Budget chains run $10 to $25/mo. Premium gyms push past $100/mo.
Food: The biggest line item for almost everyone. Whole-food groceries run $300 to $500/mo for one person on a clean-eating plan. Meal kits and prepared meal services can double or triple that.
Supplements: Optional. A basic stack of whey, multivitamin, and creatine sits around $40/mo. Stacks above $75/mo are rarely necessary.
Books: 10 pages a day works out to roughly one book a month. Hardcovers run $25, paperbacks $15, and the library is free.
Gear: One-time. Most people start in shoes and clothes they already own. Cold-weather layers and a decent pair of running shoes are the only common upgrades.
Five ways to cut your challenge budget
- Train outdoors or at home. Drops gym from $50/mo to $0 and saves around $125 across the challenge.
- Buy bulk staples. Chicken, rice, oats, eggs, frozen vegetables. Skip meal kits. Easy $750+ savings vs. premium plans.
- Stick to a basic supplement stack. Whey, multivitamin, creatine. Skip the rest unless you have a real reason.
- Use the library or Libby. Free vs. $20 per book is $50 to $100 over 75 days.
- Reuse existing gear. You don't need new shoes, a lifting belt, or a fresh wardrobe to start.
Free vs. paid resources for finishing the challenge
Almost every paid resource has a free alternative. Premium gym vs. outdoor running. Meal kits vs. grocery store. Coaching apps vs. a free tracker. The discipline part is identical.
Reset75 is a free tracker built for 75-day challenges, with daily checklists, progress photos, and streak tracking. Pair it with the 75-day challenge calculator to plan your start date, and the challenge success calculator to estimate how many attempts you'll need to finish.
Frequently Asked Questions
Common questions about challenge cost calculator
How much does a 75-day challenge actually cost?
Most people spend roughly $400 to $1,200 over 75 days. The official program is free. Almost all the cost comes from your gym, food, supplements, and books. Use the calculator above to plug in your real numbers and see a personalized total.
Is the 75 Hard program free?
Yes. The rules created by Andy Frisella are free on his site. The 75 Hard mobile app is a separate, optional paid product. Reset75 is a free alternative tracker for any 75-day challenge.
Do I need a gym membership to do a 75-day challenge?
No. One of the two daily workouts has to be outdoors anyway, and the other can be bodyweight, a home setup, or a run. Set the gym field to $0 in the calculator above to see a no-gym budget.
What is the cheapest way to do a 75-day challenge?
Outdoor workouts ($0), a clean-eating grocery plan (around $300/mo), library books ($0), and skipping supplements brings the 75-day total under $800. The 75 Soft tracker is also a cheaper, single-workout variant.
How much should I budget for food on a 75-day challenge?
A budget clean-eating plan runs roughly $300/mo. A moderate plan is around $500/mo, and a premium meal-kit plan about $800/mo. Over 75 days that works out to roughly $750, $1,250, and $2,000.
Are supplements required for 75 Hard?
No. The rules do not require supplements. A basic protein, multivitamin, and creatine stack runs about $40/mo if you choose to use them. Plenty of people finish the challenge on food alone.
How many books will I read in 75 days?
At 10 pages a day for 75 days, you will read 750 pages, which is roughly 2 to 3 average nonfiction books. The default is 1 book per month (about 3 over the challenge). Use the library or Libby to keep cost at $0.
Why does this calculator multiply monthly costs by 2.5?
75 days is roughly 2.5 months (75 divided by 30). One-time costs like gear and gear extras are added once. Recurring costs like gym, food, supplements, and books are scaled by 2.5 to cover the full window.