FREE TOOLS · NO SIGNUP
Calculate costs. Compare requirements. Convert storage.
Choose the question you need to answer. Each tool shows its assumptions and what the result leaves out.
Compare newsletter plan costs
- You enter
- Current and expected subscriber counts, plus emails per subscriber each month.
- You get
- Published plan costs and limits for each list size.
Find your newsletter break-even point
- You enter
- Software cost, subscription price, and an assumed paid conversion rate.
- You get
- The paying readers and total audience needed to cover that bill.
Check whether switching will pay back
- You enter
- Your current bill, the new bill, and the one-time cost of moving.
- You get
- Monthly savings, first-year net savings, and payback time.
Compare a revenue share with a flat fee
- You enter
- Paid-subscription revenue, the percentage fee, and a flat monthly price.
- You get
- The fee difference and the revenue where the two costs meet.
Find your password-manager requirements
- You enter
- Who needs access, how you share, your budget, and email-alias needs.
- You get
- A requirements checklist—not a universal product ranking.
Find the cloud storage plan that fits
- You enter
- How much you store, how many people share it, and monthly or yearly billing.
- You get
- The smallest iCloud+, Google One, Microsoft 365, and Dropbox plan that holds it, in US dollars.
Convert GB, TB, GiB, and TiB
- You enter
- A capacity and the units you want to convert between.
- You get
- The equivalent capacity, byte count, and calculation.