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Rule #1 Investing

Return on Invested Capital (ROIC) Calculator

Calculate Return on Invested Capital—the most important number to tell you if a business is being run well.

Operating Income × (1 - Tax Rate)

From the balance sheet

Long-term + short-term debt

Return on Invested Capital

0%

Formula

ROIC = NOPAT ÷ (Equity + Debt)

What is ROIC?

Return on Invested Capital (ROIC) measures how efficiently a company uses its capital to generate profits. It's one of the most important metrics for Rule #1 investors because it tells you whether management is doing a good job running the business.

Rule #1 Guideline

Look for companies with ROIC of 10% or higher consistently over the past 10 years. This indicates a durable competitive advantage (moat).

Understanding the Components

  • NOPAT: Net Operating Profit After Taxes. Calculate as: Operating Income × (1 - Tax Rate). If this is difficult to calculate, you can use Net Income as an approximation.
  • Equity: Total shareholder equity from the company's balance sheet.
  • Debt: Total debt including both long-term and short-term debt from the balance sheet.

Why ROIC Matters

A high ROIC indicates that a company can reinvest its earnings at attractive rates, leading to compound growth over time. Warren Buffett calls this the "economic moat"—a sustainable competitive advantage that protects the business from competitors.

Frequently Asked Questions About ROIC

Why does my ROIC look different from what I see on other sites?

Different sites use different formulas or data sources. That's normal. What matters most is using the same method year after year to track trends.

Can I use a company's net income instead of NOPAT?

If you're in a pinch, yes. It's not perfect, but it's a decent proxy for a quick check.

How do I compare ROIC across industries?

Stick to comparing companies within the same industry. Industry averages matter. A "good" ROIC in one sector might be average in another.

What if ROIC is declining?

That's your cue to dig deeper. Declining ROIC might mean management is struggling to generate returns on new capital.

Still Curious? Here's What's Next

A company's current ROIC is just one step. There's a lot more information to take in about a company before you buy to own.

Sales Growth Rate Calculator

Deepen your analysis of a company's health.

Calculate Sales Growth →

See all investment calculators

Disclaimers & Compliance

This calculator and all information provided here are for educational purposes only and do not constitute financial advice. Always do your own research and consult a professional before making investment decisions.

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