livlong
LOGIN
Loading...
Search forDoctors
Will be available - really soon!
hi_mobBanner
Home / Health Calculators / Ovulation Calculator

Ovulation Calculator

First Day of Your Last Period

29/5/2025

Average Length of Cycles:

28 Days

RESULT

<

Sun

Mon

Tue

Wed

Thu

Fri

Sat

YOUR CYCLE IS 28 DAYS

ov_calenderFERTILE
WINDOW

0-0

ov_APPROXIMATE_OVULATIONAPPROXIMATE
OVULATION

0

ov_next_periodsNEXT
PERIOD

0

TALK TO A GYNECOLOGIST

Overview -

Ovulation Calculator

Since ovulation period is the best time to get pregnant, many women use ovulation calculators to help them conceive. These calculators are also known as ‘best time to get pregnant calculators. People who are planning to have children can attempt conceiving during the most fertile window to increase their chances of success. In addition to this, ovulation day calculators can be helpful in predicting the energy levels and help with planning major events accordingly. Hormones in a woman’s body fluctuate throughout her menstrual cycle, which can impact her mood, productivity, and overall health.

Here, you will learn about the ovulation day calculator with some examples to help you understand the calculator better.

ov_para1
ov_para2

Menstrual Cycle, Ovulation, and Conception

Women have an average menstruation cycle of about 28 days, which starts when they hit puberty and continues to repeat till menopause. Your menstruation cycle starts on the first day of your period; this cycle may repeat every 22 to 40 days. One (or more) egg from alternate ovaries (females usually have two) matures in a cycle and waits for fertilisation inside the uterus; this process is called ovulation.

During the ovulation period, which lasts about 6 days, your body is most susceptible to become pregnant. The mucus in your cervix, which is like a gateway to the uterus, starts to become thinner to allow easy entry of the sperms through the vagina. Since the lifespan of a sperm is up to 5 days, having sex around your ovulation cycle increases the chances of you getting pregnant. If the egg is not fertilised by the end of your menstruation cycle, the body prepares to remove it from the uterus along with the plush endometrial lining (in which the fertilised egg would have been implanted); this process is your period.

The menstrual cycle of a woman plays an important role and influences the everyday life of that woman. The hormones in a female’s body fluctuate during the menstrual cycle, which impacts her performance, mood, and overall health. As you know the length of this cycle may vary from person to person; hence, many women prefer to use an ovulation period calculator.

What is an Ovulation Calculator?

An ovulation calculator is a simple tool that helps in the calculation of fertile days for a particular menstrual cycle. The accuracy of an ovulation calculator may be off sometimes, but most of the times you can determine the ovulation day or date with the help of this simple calculator.

Your fertile window—the best time to get pregnant—starts on the 20th day (on average) of your menstruation cycle and lasts for up to 6 days. If this is not your typical ovulation cycle, chances are you may still be able to conceive as the fertile window is of about 6 days; if you include the lifespan of the sperm, it gives you a pretty good chance of conceiving.

Here’s a simple formula to calculate the ovulation day:

First day of the fertile window = (Number of days in your menstrual cycle) − 20 (average ovulation cycle) + (First day of the last period)

For example, if you started your period on 5th February and your menstruation cycle is 26 days long, then the first day of your fertile window will be:

24 − 20 + 5 = 11, i.e., 11th February

Since the fertile window is usually 6-day long, 11th to 17th February will be your intercourse window for pregnancy.

*Approximate ovulation date is the last day of the fertile window, which is 17th February in the above-mentioned example.

Let’s assume you started your period on 24th April and your menstruation cycle is 30 days long, then the first day of your fertile window will be:

30 − 20 + 24 = 34, i.e., 4 days after 30th April or 4th May

The fertile window will be from 4th to 10th May, and 10th May will be the approximate ovulation date.

You can use this simple ovulation date calculator to find the day of ovulation and the fertile window, but there is no such thing as ‘100 percent accurate ovulation calculator’ because many factors affect the ovulation. Please note if you are having any trouble conceiving, it is better to consult a gynaecologist.

ov_para3

Other Calculator

Calculate as per your need

BMR Calculatorimage

BMR Calculator

Focused on shedding weight the healthy way! Use BMR Calculator to know the number of calories to cut out on a daily basis

CALCULATE NOW
GFR Calculatorimage

GFR Calculator

Concerned with your kidney health! Use a GFR Calculator, one of the best indicators of kidney function

CALCULATE NOW
Carb Calculatorimage

Carb Calculator

Watching what you eat to achieve your fitness goals! Use Carb Calculator to track and manage your carbohydrate intake

CALCULATE NOW
Body Fat Calculatorimage

Body Fat Calculator

Feeling overweight! Use Body Fat calculator, an extremely convenient method that does not need special equipment

CALCULATE NOW
Ideal Body Weight Calculatorimage

Ideal Body Weight Calculator

Want to know the right weight for your Height! Use Ideal body Weight calculator to know what’s the healthy weight as per your height

CALCULATE NOW
BMI Calculatorimage

BMI Calculator

Are you underweight or overweight! Use BMI Calculator to find out the optimal weight with respect to your height

CALCULATE NOW
Period Calculatorimage

Period Calculator

Want to predict your menstrual cycle! Use Period Calculator to help you know your next period date

CALCULATE NOW
Pregnancy Calculatorimage

Pregnancy Calculator

Planning a family! Use Pregnancy Calculator to know what stage of pregnancy you are and your estimated due date

CALCULATE NOW
Protein Calculatorimage

Protein Calculator

Want to know how much protein to consume daily! Use Protein Calculator to find out how much protein is recommended for daily intake

CALCULATE NOW
TDEE Calculatorimage

TDEE Calculator

Want to manage weight as per your health goals! Use TDEE Calculator to know how much energy is burned during a day

CALCULATE NOW

Ovulation Calculator FAQ'S

download-livlong-app

download

livlong

One Place for All Your Health Needs

icons

Doctor Consultations

icons

Lab Tests

icons

Medicines

icons

Health Plans & Much More

Available on

google-playapple_store_download_app_section

Join 2,00,000+ subscribers who get personalised health tips in their inbox

livlong

Community

Livlong Protection & Wellness Solutions Limited (LPWSL) is a healthcare company who partners directly with health & wellness service providers that guarantee services to our members. LPWSL has the license from IRDAI to distribute the insurance products of the Insurers. IRDAI Corporate Agent Registration Number: CA1010. License Category: Corporate Agent (Composite), Valid till: 19th December, 2027.

Registered Office: IIFL House, Sun Infotech Park, Road No 16V, Plot No.B-23, MIDC, Thane Industrial Area, Wagle Estate, Thane (West), 400604. CIN: U74110MH2014PLC260200.