Defensive Interval Ratio Calculator

The defensive interval ratio (DIR) is a defensive liquidity ratio measuring how many days a company can fund its operating expenses from defensive assets alone, without relying on new revenue. Formula: DIR = (current assets − inventory) ÷ daily operating expenses. Example: Rp500 million in current assets minus Rp200 million inventory yields Rp300 million in defensive assets; Rp1.095 billion annual operating expenses divided by 365 days gives Rp3 million daily expenses; so DIR = 300 million ÷ 3 million = 100 days.

DIR = (Current Assets − Inventory) ÷ (Annual Operating Expenses ÷ days in a year). The numerator is called defensive assets: the current assets that convert to cash fastest — cash, marketable securities, and receivables. The denominator is daily operating expenses. The result is expressed in days.

All three measure liquidity, but they answer different questions. Current ratio = current assets ÷ current liabilities: measures ability to pay short-term obligations. Cash ratio = (cash + cash equivalents) ÷ current liabilities: the strictest version against obligations. DIR = (current assets − inventory) ÷ daily operating expenses: measures how long operations run without new revenue — its denominator is operating outflows, not obligations. One-company example: current assets Rp1,000 million, inventory Rp400 million, current liabilities Rp500 million, cash Rp100 million, cash equivalents Rp50 million, annual operating expenses Rp2,190 million. Then current ratio = 1,000 ÷ 500 = 2.0; cash ratio = 150 ÷ 500 = 0.30; defensive assets = 600 million, daily expenses = 2,190 ÷ 365 = 6 million, DIR = 600 ÷ 6 = 100 days.

There is no official standard for DIR — ideal numbers differ across industries because each business has a different cost structure. As a general guideline sometimes used in the literature (not an official standard): under 30 days means an operating cushion under one month, 30–90 days means roughly one to three months, and over 90 days means over three months. Use the interpretation table in this calculator only as a starting point for discussion, not as an assessment.

Because inventory is the slowest current asset to become cash: it must be sold first, and sales are uncertain. DIR is deliberately defensive — it only counts assets that can almost certainly pay bills soon: cash, marketable securities, and receivables. That is why the DIR numerator is practically the same as quick assets.

A 365 divisor follows calendar days and suits ordinary annual reports. A 360 divisor follows the banker’s year convention used by some analysts to keep period comparisons tidier. Both are valid; what matters is consistency when comparing two companies. This calculator offers both options — e.g. Rp1.095 billion annual expenses gives Rp3 million daily expenses with 365 days, and Rp3.04 million with 360 days.

Yes. If inventory exceeds current assets, defensive assets turn negative and DIR goes negative too. Example: Rp200 million in current assets with Rp300 million inventory yields Rp−100 million in defensive assets; with Rp3 million daily expenses, DIR = −100 ÷ 3 = −33.33 days. A negative value signals a current-asset structure dominated by inventory, leaving almost no liquid cushion for operations.

No. This calculator is an educational tool for computing numbers from the data you enter; it does not assess a company’s condition or recommend financial decisions. For business or investment decisions, consult a licensed accountant or financial advisor.