Subscription Cost Comparison Calculator

Compare subscriptions, mileage caps, fees, and fuel instantly. View totals, averages, break-even points, and savings. Choose the lowest realistic driving cost with clarity today.

Calculator Inputs

Common Assumptions


Subscription Plan A


Subscription Plan B


Ownership Baseline

Formula Used

Subscription monthly overage
max(0, monthly miles − included miles) × overage rate
Subscription monthly recurring cost
monthly fee + monthly overage + subscription tax + insurance + fuel or charging + parking or tolls + extra services
Ownership monthly recurring cost
loan or lease payment + insurance + maintenance + fuel or charging + parking or tolls + depreciation + other + (annual registration ÷ 12)
Total cost
upfront cost + (monthly recurring cost × comparison months)
Effective monthly cost
total cost ÷ comparison months
Cost per mile
total cost ÷ (monthly miles × comparison months)
NPV cost
upfront cost + discounted value of every monthly cost using the annual discount rate

The calculator applies subscription tax only to the subscription base charges and start fee. Ownership is modeled using recurring operating costs, registration, and monthly depreciation.

How to Use This Calculator

  1. Enter the number of months you want to compare.
  2. Estimate realistic monthly mileage for your driving pattern.
  3. Fill Plan A and Plan B with fees, mileage caps, and extra expenses.
  4. Enter your ownership baseline using loan, insurance, maintenance, and depreciation values.
  5. Adjust tax and discount assumptions if needed.
  6. Submit the form to view totals, monthly averages, cost per mile, NPV, and break-even guidance.
  7. Use the CSV and PDF buttons to save the results for later review.

Example Data Table

Scenario Monthly Fee or Payment Upfront Monthly Miles Total Cost over 24 Months Effective Monthly
CityFlex $899.00 $499.00 1,200 $33,911.38 $1,412.97
OpenRoad Plus $1,049.00 $299.00 1,200 $35,560.38 $1,481.68
Traditional Ownership $610.00 payment $3,500.00 1,200 $38,420.00 $1,600.83

This example uses the default values already loaded in the form. Change mileage, fees, and depreciation to match your own situation.

Frequently Asked Questions

1. What does this calculator compare?

It compares two car subscription plans against a traditional ownership baseline. It estimates total cost, effective monthly cost, cost per mile, discounted cost, and potential savings over your chosen period.

2. Why include mileage limits?

Mileage caps can change subscription economics quickly. If you drive more than the included miles, overage charges can erase the convenience advantage of a subscription plan.

3. Why does ownership include depreciation?

Depreciation reflects the vehicle’s value loss over time. Ignoring it can make ownership look cheaper than it really is, especially during the first years of use.

4. What is NPV in this calculator?

NPV means net present value. It discounts future monthly costs into today’s money, helping you compare options more realistically when your time horizon is long.

5. Should fuel be entered for subscription plans?

Yes, unless your subscription price already includes fuel or charging. Add only the costs you will actually pay out of pocket to avoid double counting.

6. Can I use this for electric vehicles?

Yes. Enter charging costs instead of fuel costs. You can also use extras for public charging memberships, battery-related services, or bundled convenience fees.

7. What does break-even mean here?

Break-even estimates when one option’s higher upfront cost is offset by lower monthly costs. It helps you see whether a cheaper long-term choice fits your ownership timeline.

8. Which inputs matter most?

Mileage, monthly fee, depreciation, and insurance usually have the biggest effect. Small changes in these fields can shift the cheapest option significantly.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.