Subscription True Cost Calculator

Death by a thousand cuts. Calculate how much your recurring software and streaming habits are secretly costing your future self.

Standardization model: (Σ Monthly Subs × 12) ÷ Annual Take Home.

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Active Subs

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How It Works & Educational Guide

How To Use

  1. Enter the monthly cost of a subscription (e.g. Netflix, Spotify, Gym).
  2. Add multiple subscriptions to build your total monthly siphon.
  3. Click calculate to reveal your decade-long opportunity cost if that money had been invested rather than spent.

Decadal Opportunity Cost (FV)

Opportunity Cost = FV(Monthly Total, Horizon, Expected Return Rate)

What the results mean

MetricMeaning
Monthly SiphonThe actual cash leaving your bank account every month. High fatigue occurs above $100/mo.
10-Year Out of PocketWhat you will physically pay the subscription companies over a decade.
Lost Wealth (Opportunity Cost)What that money could have grown into if you had invested it into an index fund at 8% instead.

Frequently Asked Questions

How do subscriptions drain wealth?
The subscription model relies on you forgetting you are paying for it. A $15/month charge seems small, but if you have 8 of them, thats $1,440 a year drained from your wealth building.
What is subscription fatigue?
The feeling of being overwhelmed by the sheer number of monthly recurring charges across software, media, and apps, often leading to financial leaks.
Reviewed by Lion Finance Team · Updated July 6, 2026

Calculator Insights

Uncovering the Hidden Cost of Subscriptions

Those small $10 monthly charges for streaming services, software, and gym memberships add up to a massive financial drain over time. The Subscription True Cost Calculator reveals how much wealth you are losing over a decade by showing the compounded opportunity cost of your automated spending.

By treating subscription costs as lost investment capital, you can make ruthless decisions about what services you actually need. Cancel the bloat, reinvest that money, and watch how minor monthly savings translate to massive long-term wealth.