Subscription Cost Calculator
Compare monthly and annual subscription prices to see which plan costs less per year.
What it does
Streaming, apps, gyms, and software now bill by the month or by the year, and the annual ticket almost always looks cheaper at first glance. The gap is sometimes two free months, sometimes only a few dollars, and sometimes nothing once fees are added, so a straight comparison pays.
The tool above takes the monthly price and the annual price side by side. It multiplies the monthly figure by 12, subtracts the annual figure, and names the cheaper plan, so renewals, gifts, and family plans read at once.
This math fits fixed price plans with no usage charges. It does not fit tiered plans where the price changes with seats, storage, or minutes, nor plans with setup fees, cancellation fees, or first year discounts that vanish at renewal.
Federal guidance on recurring subscriptions from the FTC uses the same yearly lens: shoppers should know the total yearly charge and how to cancel before they agree. Pages that show the full 12 month total make that choice clearer.
Run each subscription you hold through the page once a year. One plan rarely decides a budget, but five small gaps of $20 each free $100 for other goals.
How to use
- Enter the monthly price exactly as billed, for example 12.99.
- Enter the annual price for the same tier and seat count.
- Read the yearly monthly total first, then the savings figure.
- Read the cheaper plan label to confirm which billing wins.
- Repeat for each tier if a service sells basic and premium plans.
- Recheck after trials end or prices rise, since defaults change.
Formula
- monthly
- Price charged each month for the same plan tier.
- annual
- One time price for 12 months of the same tier.
- savings
- Dollars kept by picking annual over monthly for a year.
Both prices must cover the same seats and features. A zero monthly price gives zero yearly cost, and equal totals return a tie. Introductory first year prices need a second run at the renewal rate.
Worked example
Example: $12.99 a month vs $129.99 a year
Monthly price 12.99, annual price 129.99, same plan tier.
- Yearly monthly: 12.99 x 12 = $155.88.
- Savings: 155.88 - 129.99 = $25.89.
- Cheaper plan: savings above zero, so Annual plan.
- Tool shows yearly $155.88, savings $25.89, plan Annual plan.
- Monthly share of annual: 129.99 / 12 = $10.83 per month, so annual acts like a $2.16 monthly cut.
Reference table
| Monthly | Annual | Yearly monthly | Savings |
|---|---|---|---|
| $9.99 | $99.99 | $119.88 | $19.89 |
| $12.99 | $129.99 | $155.88 | $25.89 |
| $14.99 | $149.99 | $179.88 | $29.89 |
Limits
- Same tier only. Seat counts, storage caps, and ads must match.
- Ignores taxes, setup fees, and cancellation charges.
- Introductory rates expire, so rerun at the renewal price.
- Usage based extras outside the flat price need separate math.
Common mistakes
- Comparing a basic monthly tier against a premium annual tier.
- Forgetting that monthly x 12 is the base, not monthly x 10.
- Reading a negative savings as an annual win.
- Missing the renewal rise after a discounted first year.
- Skipping taxes and fees that land on only one billing mode.
Try it yourself
Quick checks. Answers sit tucked under each question.
$9.99 a month vs $99.99 a year?
Yearly 9.99 x 12 = $119.88, savings $19.89, Annual plan wins.
$5 a month vs $70 a year?
Yearly $60.00, savings -$10.00, Monthly plan wins by $10.00.
$15 a month vs $150 a year?
Yearly $180.00, savings $30.00, Annual plan wins.
Questions
How do I compare monthly vs annual subscriptions?
Multiply the monthly price by 12, then subtract the annual price. A positive result favors annual billing.
What does negative savings mean?
The annual plan costs more than paying monthly. Stay monthly or ask for a lower annual quote.
Should taxes be included?
Yes if they differ by billing mode. Enter tax inclusive prices on both sides for a fair read.
Do free trial days change the math?
Only for year one. Trials delay the first charge but rarely change the renewal comparison.
What if prices rise mid year?
Rerun with the new monthly figure. Annual locks the old rate until renewal in most plans.
Is two months free a good deal?
It equals about 16.7% off monthly billing. Compare the exact dollars here, since fees can trim the gain.