When most people think about financial health, they think about income and net worth. These are important numbers. But they are incomplete.
There is a third metric—one that most personal finance tools ignore—that may be the most important of all: your liquidity ratio, or what we call your financial runway.
What Is Your Liquidity Ratio?
Your liquidity ratio measures how long you can sustain your current lifestyle using only your liquid assets, without any income.
The formula: Liquidity Ratio = Total Liquid Assets divided by Average Monthly Expenses
Liquid assets are assets you can convert to cash quickly: savings account balance, liquid mutual funds, accessible fixed deposits, and cash. Non-liquid assets do NOT count: property, gold jewelry, long-term equity investments, and provident fund.
Why Net Worth Alone Is Dangerous
Person A has a net worth of 80 lakhs—75 lakhs in real estate and 5 lakhs liquid. Monthly expenses 50,000. Liquidity ratio: 10 months.
Person B has a net worth of 20 lakhs—all liquid. Monthly expenses 40,000. Liquidity ratio: 50 months.
If both lose their income tomorrow, Person B is dramatically more secure. You cannot pay rent with real estate.
Financial Runway Calculator
Fin OS automatically calculates your liquidity ratio using your logged liquid assets divided by your 90-day average monthly expenses. See your runway score updated in real time on the dashboard.
What Is a Safe Liquidity Ratio?
- Below 3 months: Dangerous. A single setback could trigger debt.
- 3–6 months: Minimum acceptable.
- 6–12 months: Good. Buffer for job transitions or extended illness.
- 12+ months: Excellent. True financial peace of mind.
For India specifically, targeting 6–9 months is a strong benchmark.
Conclusion
Your liquidity ratio is not a glamorous metric. But in a crisis, it is the number that determines whether you face the situation with clarity—or with panic. If it is below 6 months, make increasing it your top financial priority—ahead of SIPs, ahead of your stock portfolio.