Enter the follicle stimulation hormone and the luteinizing hormone into the Calculator. The calculator will evaluate the Fsh Lh Ratio. 

Fsh Lh Ratio Formula

FLR = Fsh/Lh


  • FLR is the Fsh Lh Ratio ()
  • Fsh is the follicle stimulating hormone
  • Lh is the luteinizing hormone

To calculate Fsh Lh Ratio, divide the follicle stimulating hormone by the luteinizing hormone.

How to Calculate Fsh Lh Ratio?

The following steps outline how to calculate the Fsh Lh Ratio.

  1. First, determine the follicle stimulation hormone. 
  2. Next, determine the luteinizing hormone. 
  3. Next, gather the formula from above = FLR = Fsh/Lh.
  4. Finally, calculate the Fsh Lh Ratio.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

follicle stimulating hormone = 80

luteinizing hormone = 90


What is the importance of the Fsh Lh Ratio in reproductive health?

The Fsh Lh Ratio is crucial in assessing reproductive health, particularly in women. It helps in diagnosing conditions like Polycystic Ovary Syndrome (PCOS), menopause, and certain fertility issues. A balanced ratio is essential for normal reproductive processes.

Can the Fsh Lh Ratio affect pregnancy?

Yes, an abnormal Fsh Lh Ratio can affect a woman’s ability to conceive. A higher or lower than normal ratio can indicate underlying issues that may need to be addressed to improve fertility and the chances of a successful pregnancy.

How often should the Fsh Lh Ratio be tested?

The frequency of testing the Fsh Lh Ratio depends on individual health conditions and recommendations from healthcare providers. It’s often checked as part of fertility evaluations or when a woman is experiencing symptoms that suggest hormonal imbalances.

Are there ways to improve an abnormal Fsh Lh Ratio?

Improving an abnormal Fsh Lh Ratio often involves addressing the underlying cause. Treatment options may include lifestyle changes, medication, or other interventions recommended by healthcare professionals. Each case is unique, so it’s important to consult with a healthcare provider for personalized advice.