Defensive Interval Ratio
Calculate Defensive Interval Ratio instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Defensive Interval Ratio
Liquid assets
Expenses/day
DIR
100days
More about: Defensive Interval Ratio
What it calculates
The “Defensive Interval Ratio” calculator computes DIR in days from 2 parameters: liquid assets, expenses/day.
Used by investors to estimate returns, project savings, and analyze a portfolio.
Example calculation
With parameters Liquid assets = 500,000, Expenses/day = 5,000 the result is 100 days.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.