Subscription Cost Calculator

Add each subscription: tap a preset for popular services, or use “Add a custom subscription” for anything else. The calculator converts yearly, quarterly and weekly plans into a monthly cost, converts everything into one currency and adds it up, also showing yearly and daily figures.

At US list prices in October 2026: ChatGPT Plus is $20/month ($240/year), Claude Pro $20/month ($200 if paid yearly), Google AI Pro $19.99/month and SuperGrok $30/month. Two or three of them add up to $500–700 a year. Add them to the calculator and the “AI subscriptions cost you…” line shows your exact total.

Presets are official list prices published in October 2026 (mostly US prices in USD; China-only services in CNY). Regions, taxes, App Store billing, student or family plans and promotions all change the price. After adding, click Edit and enter the amount and currency from your bill — the calculator always uses what you enter.

Yes. In “Add a custom subscription”, enter a name and amount and choose weekly, monthly, quarterly, yearly or “every N months” (enter 6 for twice a year), plus a category, currency and renewal date. Every item can be edited, duplicated, deleted or switched off so it is temporarily excluded from the totals.

Each subscription keeps its own currency and is converted into your chosen display currency for the totals. Built-in reference rates are from 2026-10-07; edit any of them under “Rates”, or click “Fetch latest rates” to pull the day’s rates once from a free public API. Card foreign-transaction fees (often 1–3%) aren’t included — nudge the rate up if you want to account for them.

No. All calculations run in your browser and the list is saved automatically in this browser’s localStorage; 17NAS servers never receive it. That also means it won’t appear in another browser or device, or after clearing browser data — use “Export JSON” as a backup and “Import” it elsewhere, or move it with a share link.

“Export CSV” creates a spreadsheet with a UTF-8 BOM that opens directly in Excel, Numbers or Google Sheets, including each item’s monthly and yearly cost; “Export JSON” is a full backup you can import again. A share link encodes the list after the # in the URL, so nothing is stored on a server — but anyone with the link can read it, so share it only with people you trust.

It depends on how much you replace. A ~$450 2-bay NAS with $300 of drives running 24/7 at 30 W (≈22 kWh, about $3.70 a month at $0.17/kWh) that replaces iCloud+ 2TB plus Dropbox Plus (≈$22/month) pays back in about 3½ years; replacing a single $2.99 plan never pays back. Enter your own numbers in the NAS comparison — the result is an estimate.

Usually not. A NAS can run a media server such as Jellyfin or Plex for films and music you own, but it can’t replace a streaming service’s licensed catalogue. That’s why only cloud storage is ticked by default in the NAS estimate; tick video or music yourself only if it really applies.

Start with the top 5 and the category chart to see where the money goes. Switch off subscriptions you rarely use to see the yearly saving instantly. Keep just one of any overlapping services (two AI assistants, two cloud drives), move the ones you use daily to yearly billing, which is usually cheaper, and add renewal dates so you can decide before each charge.