Are you looking for an hCG levels calculator for a quantitative measure of hCG hormone? The hCG levels calculator is an online tool to detect whether the first trimester or early-stage pregnancy progresses normally. To use this calculator, we need to take two hCG level values to compare the hCG levels’ differences. The difference in hCG levels determines the hCG doubling time and the hormone’s one- or two-day increase.
This article will help you explore the details of the hCG hormone, normal values of hCG during pregnancy, and the use of this hCG levels calculator.
What is hCG?
Human chorionic gonadotropin or hCG is a hormone specifically produced in bulk during pregnancy. After the implantation of a fertilized ovum, the cells dividing in the placenta stimulate the production of hCG. The hCG hormone works in conjunction with the luteinizing hormone to induce the formation of the corpus luteum. The Corpus luteum is the remnant of ovarian follicles that have already released the ovum.
The hCG levels are usually detected in the blood samples just 11 days after fertilization. The hCG levels double up after every 48 to 72 hours. The maximum levels of hCG can be observed around the 8th to 11th week after conception. After this, hCG levels decline and remain steady for the rest of the pregnancy.
What are the normal hCG levels during pregnancy?
The hCG hormone starts increasing quantitatively from the 6th week to the 12th week. The normal hCG level during this phase ranges from 1200 to 600 mlU/mL serum. Extreme high levels of hCG hormone denote multiple pregnancies like twins. However, a lower level of hCG may exhibit an ectopic pregnancy. Ectopic pregnancy means that there is an implanted ovum but other than the normal place. An hCG level of more than 1500 mlU/ml with no visible fetus in transvaginal ultrasound may indicate an ectopic pregnancy.
hCG levels rise normally but extremely high levels are also a feature of ovarian cancer or testicles. Both these malignant conditions cause an increased production of hCG.
After checking your HCG level, it is important to check your pregnancy trimester using our online pregnancy trimester calculator.
How to use the hCG levels calculator?
HCG hormones are usually measured through blood samples. For the use of hCG levels calculator, you need to take two measurements of hCG levels at different time intervals.
- hCG1 is the first result of the hCG test you took for the first time.
- hCG2 is the second value of the hCG test you took after a gap of a few days.
- The other thing needed is the time interval between these two measurements.
After getting all these values, you need to put them in our calculator to evaluate the normal progression of your pregnancy. The normal hCG levels are important to know the normal development taking place in your body. Putting all these input values, our hCG level calculator will provide you with the following findings.
- The difference between these two values (the hCG1 value subtracted from the hCG2 value) must be positive to explain that your hCG levels are rising. A rise in hCG level is normal during the pregnancy. A negative value may indicate that your hCG levels are declining, which is not a normal finding.
- A percentage change is also important to measure to evaluate the relative increase between these two measurements. For this, we need to divide the difference between these two values by the first measure. You don’t need to do these calculations. Our hCG level calculator will directly provide you with accurate answers.
- The doubling time (T2) is the normal time required to double the amount of hCG hormone levels. The following formula is used in our hCG calculator to assess the doubling time of hCG levels
T2= log2 × (time interval in days)
log(hCG2/hCG1)
- Moreover, our hCG level calculator also provides a one-day percentage increase value of the HCG hormone.
- It also provides information regarding the two-day increase in the hCG hormone.
How to interpret the values by using the hCG levels calculator?
Let us take an example to understand the use of the hCG levels calculator. Let’s suppose the first value of hCG is 1700 mlU/ml. The second value of hCG is 2400 mlU/ml. The time interval between these values is 2 days.
- The difference between these values is +700 mlU/ml indicating a rise in hCG levels.
- The percentage change is 41.18
Percentage change = (difference / hCG1) ×100
Percentage change = (700/ 1700) ×100
Percentage change = 41.18%
- The doubling time of the hCG hormone is about 4 days.
T2 = log2 × (time interval in days)
log(hCG2/hCG1)
T2 = log2 × 02
log (2400/1700)
T2 = 0.60 / 0.15
T2 = 4 days
- The one-day increase will be 18.82%
- The two-day increase will be 41.18
HCG normal levels chart
The hCG hormones continue to rise from the early pregnancy to the 14 to 16th week of pregnancy. After a peak value of hCG levels, it starts declining and attains the pre-pregnancy levels. Here is the hCG levels chart according to the pregnancy weeks.
| Pregnancy week: | hCG blood levels (mlU/ml): |
| Men or non-pregnant ladies | Lesser than 5 |
| 1st week | 5 to 50 |
| 2nd week | 50 to 500 |
| 3rd week | 100 to 10,000 |
| 4th week | 1080 to 30,000 |
| 6th to 8th week | 3500 to 115,000 |
| 12th week | 12000 to 270,000 |
| 13th to 16th week | Up to the levels of 200,000 |
Research keywords
hCG calculator, hCG hormone, pregnancy calculator
Frequently Asked Questions (FAQs)
Q1: Can I measure hCG levels at home?
No, you can’t measure early hCG levels at home. HCG levels are usually detected in blood samples. This test is also known as the beta hCG test. You need to visit any laboratory for a quantitative assessment of hCG levels. Besides this, some amount of hCG is also excreted in the urine. There are special strips that can detect hCG levels in the urine.
Q2: Is there any way to increase the levels of hCG?
Different digital platforms claim that there are some remedies and foods that can help to increase the levels of hCG in the blood. Unfortunately, it is quite tempting to follow them but there is no way to increase or decrease hCG levels in the blood.
Q3: Are there any signs to denote increased hCG levels in the blood?
About 11 to 14 days after conception, a woman’s hCG levels are high enough to induce pregnancy symptoms. The common symptoms include fatigue, cravings for food, darkening of the nipples, and GIT changes.