Membership
Keep every calculation.
Every calculator is free with instant answers. Members can also save their calculations, come back to them any time, and browse without ads.
Free
$0
For everyone, no sign-up
- All 201 calculators: money, health, math and more
- Instant results as you type
- Amortization schedules and charts
- Invoice generator with PDF download
- Background remover
- All blog posts
Member
$5 / 3 months
Renews automatically · cancel any time
- Everything in Free
- Save up to 500 calculations
- Reopen, compare and rename saved results
- Export your saved calculations (CSV)
- Ad-free browsing while signed in
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Questions
Do I need to pay to use the calculators?
No. Every calculator and blog post is free, with instant results and no account needed. Membership only adds saving, exporting and ad-free browsing.
How does billing work?
You pay $5 when you subscribe, and the membership renews automatically every 3 months until you cancel. You can cancel any time from your account; you keep member features until the end of the period you’ve paid for.
What happens to my saved calculations if I cancel?
They stay in your account while your membership is active. After it ends we keep them for 30 days in case you come back, then delete them. You can export them as a CSV file before then.
Who processes the payment?
Our order process is conducted by our online reseller Paddle.com, which is the Merchant of Record for all our orders and handles billing, sales tax and receipts. We never see or store your card details.
Can I get a refund?
Yes — see our refund policy.