Lennox International (MIL:1LII) Effective Interest Rate on Debt %: 3.28% (As of Mar. 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

MIL:1LII Lennox International Inc MIL:1LII
93 GF Score
Price €493.20
GF Value €501.24
! 3 Warning Signs
View Full Analysis

What is Lennox International Effective Interest Rate on Debt %?

Lennox International MIL:1LII 93 Effective Interest Rate on Debt % is 3.28% as of Mar. 2026. GuruFocus rates MIL:1LII with a GF Score™ of 93/100 and a GF Value™ of €501.24. The stock has 3 warning signs investors should review.

Effective Interest Rate on Debt % is the usage rate that a borrower actually pays on a debt. It is calculated as the positive value of Interest Expense divided by its average total debt. Total debt equals to Long-Term Debt & Capital Lease Obligation plus Short-Term Debt & Capital Lease Obligation. Lennox International's annualized positive value of Interest Expense for the quarter that ended in Mar. 2026 was €53 Mil. Lennox International's average total debt for the quarter that ended in Mar. 2026 was €1,602 Mil. Therefore, Lennox International's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 was 3.28%.


Lennox International  (MIL:1LII) Effective Interest Rate on Debt % Explanation

Effective Interest Rate on Debt % measures the usage rate that a borrower actually pays on a debt.


Lennox International Effective Interest Rate on Debt % Related Terms


Lennox International Effective Interest Rate on Debt % Historical Data

* Premium members only.

The historical data trend for Lennox International's Effective Interest Rate on Debt % can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Lennox International Effective Interest Rate on Debt % Chart

Lennox International Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Effective Interest Rate on Debt %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 2.05 2.57 3.36 2.98 2.70

Lennox International Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Effective Interest Rate on Debt % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 1.64 2.12 2.85 5.46 3.28

MIL:1LII vs MAIR, MAS, CSL: Effective Interest Rate on Debt % Comparison

For the Building Products & Equipment subindustry, Lennox International's Effective Interest Rate on Debt %, along with its competitors' market caps and Effective Interest Rate on Debt % data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Lennox International Effective Interest Rate on Debt % vs Construction Industry

For the Construction industry and Industrials sector, Lennox International's Effective Interest Rate on Debt % distribution charts can be found below:

* The bar in red indicates where Lennox International's Effective Interest Rate on Debt % falls into.


MIL:1LII
93GF Score
Lennox International Inc MIL:1LII
Effective Interest Rate on Debt % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Lennox International Effective Interest Rate on Debt % Calculation

Lennox International's annualized Effective Interest Rate on Debt % for the fiscal year that ended in Dec. 2025 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (A: Dec. 2024 )+Total Debt  (A: Dec. 2025 ))/ count )
=-1  *  -39.626/( (1421.614+1512.178)/ 2 )
=-1  *  -39.626/1466.896
=2.70 %

where

Total Debt  (A: Dec. 2024 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=1051.169 + 370.445
=1421.614

Total Debt  (A: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=1227.625 + 284.553
=1512.178

Lennox International's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (Q: Dec. 2025 )+Total Debt  (Q: Mar. 2026 ))/ count )
=-1  *  -52.592/( (1512.178+1690.988)/ 2 )
=-1  *  -52.592/1601.583
=3.28 %

where

Total Debt  (Q: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=1227.625 + 284.553
=1512.178

Total Debt  (Q: Mar. 2026 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=1290.493 + 400.495
=1690.988

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

In the calculation of annual Effective Interest Rate on Debt %, the Interest Expense of the last fiscal year and the average total debt over the fiscal year are used. In calculating the quarterly data, the Interest Expense data used here is four times the quarterly (Mar. 2026) interest expense data. Effective Interest Rate on Debt % is displayed in the 30-year financial page.

What does a Effective Interest Rate on Debt % of 3.28% mean?
Lennox International (MIL:1LII) has a Effective Interest Rate on Debt % of 3.28% as of Mar. 2026. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Lennox International and its competitors.
Is Lennox International's Effective Interest Rate on Debt % too high?
Lennox International's current Effective Interest Rate on Debt % is 3.28%. Overall, Lennox International has a GF Score™ of 93/100, reflecting its overall financial health beyond just this single metric.
How does Lennox International's Effective Interest Rate on Debt % compare to MAIR and MAS?
Lennox International's Effective Interest Rate on Debt % of 3.28% can be compared against companies in the Construction industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Effective Interest Rate on Debt % for a Construction company?
A good Effective Interest Rate on Debt % depends on the Construction industry context. However, Effective Interest Rate on Debt % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Effective Interest Rate on Debt % mean?
A high Effective Interest Rate on Debt % can signal that a stock is expensive relative to its fundamentals. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Lennox International and its competitors. Lennox International's current Effective Interest Rate on Debt % is 3.28%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Lennox International stock overvalued right now?
Lennox International (MIL:1LII) has a current Effective Interest Rate on Debt % of 3.28%. The stock's GF Value™ is €501.24, compared to a current price of €493.20 — trading 1.6% below its estimated fair value. The current Effective Interest Rate on Debt % is 3.28%. Lennox International's overall GF Score™ is 93/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Effective Interest Rate on Debt % calculated?
Effective Interest Rate on Debt % is calculated from a company's financial statements. For Lennox International (MIL:1LII), the current Effective Interest Rate on Debt % is 3.28% as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Lennox International (MIL:1LII) Overvalued in 2026?

Based on GuruFocus' analysis, Lennox International stock appears to be undervalued. The current stock price of €493.20 is trading 1.6% below its estimated GF Value™ of €501.24.

Key valuation signals for MIL:1LII:

  • Effective Interest Rate on Debt %: 3.28%
  • GF Value™: €501.24 vs. price of €493.20 (1.6% below fair value)
  • GF Score™: 93/100 with 3 warning signs

No single metric tells the full story. See the MIL:1LII stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Lennox International Business Description

Other Exchanges LII:USALXI:Germany
Address 2140 Lake Park Boulevard, Richardson, TX, USA, 75080
Lennox International manufacturers and distributes heating, ventilating, air conditioning, and refrigeration products for the North American replacement (75% of sales) and new construction (25% of sales) markets. Residential HVAC (home comfort solutions) accounts for 67% of sales and commercial HVAC (building climate solutions) accounts for the remaining 33% of sales. Lennox's commercial exposure is what its peers refer to as residential and light commercial, and lacks the scale and complexity of what is referred to as an applied solution. The company goes to market with multiple brands, but Lennox is its flagship HVAC brand.
93GF Score

Get the complete analysis for MIL:1LII

Effective Interest Rate on Debt % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€493.20
Price
€501.24
GF Value