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Progesterone Level

Enter your progesterone test result. The tool will automatically assess the range.

Unit

Cycle/Pregnancy Stage

Progesterone Reference ChartData organized by menstrual cycle and pregnancy stages, units ng/ml and nmol/L.

Stage / Gestational Week	Progesterone (ng/ml)	Progesterone (nmol/L)
Follicular Phase (Days 6-14)Menstrual Cycle	0.2 - 0.6	0.6 - 1.9
Luteal Phase (Days 15-28)Menstrual Cycle	6.5 - 32.2	20.7 - 102.4
Week 7Pregnancy	16.9 - 32.12	52.7 - 100.1
Week 8Pregnancy	20.7 - 36.5	64.6 - 113.8
Weeks 9-12Pregnancy	25 - 51	78 - 159.2
Weeks 13-16Pregnancy	31.5 - 59.5	98.3 - 185.7
Weeks 17-20Pregnancy	49.3 - 77.3	153.8 - 241.2
Weeks 21-24Pregnancy	75.2 - 146.6	234.6 - 457.4
Weeks 25-34Pregnancy	129.6 - 201	403.4 - 626.2
Week 35Pregnancy	155 - 249	483.6 - 776.8
Full-Term PregnancyPregnancy	约 26	约 81.1
MenopauseOther	< 1.0	< 3.2

Unit Explanation and Conversion

Two common units are used for clinical progesterone testing. They can be interconverted using a factor of 3.12 (ng/ml × 3.12 = nmol/L).

ng/ml: A common unit in clinical reports, often used in many regions.
nmol/L: International standard molar concentration unit, used by some hospitals or testing facilities.

Disclaimer

This table is for informational purposes only and should not replace a doctor's diagnosis. Reference ranges may vary slightly between different laboratories and testing methods. Please refer to the reference range indicated on your lab report from your hospital, and consult a medical professional promptly if results are abnormal.

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Tags: progesterone levels normal progesterone range pregnancy week chart progesterone calculator medical reference

Progesterone Normal Range Checker: Core Functions and Principles

Whether progesterone levels are normal after conception is one of the most common concerns for expectant mothers. This tool provides the normal reference range for progesterone at different weeks of pregnancy. Simply enter your pregnancy week to get the corresponding standard progesterone data, helping you quickly determine if your progesterone levels are within a reasonable range. Progesterone is a crucial hormone for maintaining early pregnancy, and its secretion changes as the pregnancy progresses, resulting in significant differences in normal ranges across different stages.

Why Choose Our Progesterone Normal Range Checker?

Clear data: Directly displays the upper and lower limits of normal values for the corresponding pregnancy week, making results easy to read at a glance.
Simple operation: No registration or login required. Just select or enter your pregnancy week to get instant results.
Clinical-based reference: The reference ranges synthesize multiple clinical guidelines, providing reference intervals in the commonly used unit (ng/mL).

How to Use

Select or enter your pregnancy week on the tool page (supports the common query range of 4 to 40 weeks).
The system will automatically match the corresponding normal progesterone reference range based on the pregnancy week.
The result area will display the lower and upper limits of normal progesterone levels for that week, along with unit specifications. For example: At 5 weeks pregnant, the normal reference range is approximately 15.0 – 20.0 ng/mL; at 12 weeks, the reference range is approximately 25.0 – 35.0 ng/mL.

Frequently Asked Questions (FAQ)

What is the unit for normal progesterone values, and can it be switched?
The currently provided reference unit is ng/mL (nanograms per milliliter), and unit switching is not supported at this time. If you need to convert it to nmol/L, you can multiply the ng/mL value by 3.18.
What should I do if the result is below the normal range?
This tool only provides medical reference intervals and cannot replace professional diagnosis. If your measured value is consistently below the lower reference limit, or if you experience symptoms such as abdominal pain or bleeding, please seek medical attention promptly. A doctor will evaluate whether progesterone supplementation is needed.

Important Notes

The query range is for a single pregnancy week; batch querying is not currently supported. The results are general reference ranges. Different hospitals, testing methods, and individual differences may cause actual normal values to vary slightly. All displayed content is for health knowledge reference only and does not constitute medical advice. This tool does not collect any personal health information, so please use it with confidence.

Professional Notes / Usage Suggestions

In early pregnancy, progesterone is secreted by the corpus luteum of the ovary, and after 8 to 10 weeks, the placenta gradually takes over. Typically, at 4 to 6 weeks of pregnancy, normal values fluctuate significantly between 10 and 40 ng/mL, but values below 5 ng/mL often indicate a risk of poor embryonic development or ectopic pregnancy. It is recommended to comprehensively evaluate this in conjunction with hCG doubling trends and ultrasound results. A single progesterone value alone cannot fully determine the pregnancy outcome.

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Progesterone Normal Range Checker

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