See what small habits really cost.
Costlarity turns spending, scrolling, subscriptions, and debt into clear monthly, yearly, and long-term numbers.
Takes 30 seconds. No signup.
Featured Calculator
Doom Scroll Cost Calculator
One of our most popular calculators. Enter your scrolling habits and see what you're losing each year.
hours/year
≈ full days · workdays
Frequently asked questions
What is Costlarity?
Costlarity is a collection of free utility calculators that help you understand the real cost of everyday habits, time use, spending, and decisions. The goal is to make abstract tradeoffs concrete and easy to understand.
Are these calculators free?
Yes. All Costlarity calculators are free to use. No account, no email, no paywall.
Are the results exact?
No. The results are estimates based on the inputs you provide. They're designed to give you a useful ballpark, not a precise audit. The more accurate your inputs, the more useful the output.
What calculator should I try first?
Start with the Doom Scroll Cost Calculator. It takes about 30 seconds and most people find the result surprising.
What other calculators are available?
Beyond the Doom Scroll Calculator, you can also try the Subscription Cost Calculator, the Impulse Spend Calculator, the Delivery Fee Cost Calculator, the Coffee & Energy Drink Cost Calculator, the Credit Card Interest Calculator, and the Gym Membership Waste Calculator. See all of them on the calculators page.
From the guides
Guides
- How much are your subscriptions really costing you?
- What Buy Now, Pay Later Really Costs Over Time
- How much do impulse purchases cost you over time?
- How much are delivery apps really costing you?
- How much are coffee and energy drinks really costing you?
- What carrying a credit card balance really costs
- Why we keep paying for gym memberships we don't use