This DNA estimator tool will provide you with an accurate prediction of your genetic ancestry based on your input data.

## How to Use the DNA Estimator Calculator

- Enter the GC Content (%): This represents the percentage of bases in the DNA sequence that are either Guanine (G) or Cytosine (C).
- Enter the Total Base Pairs: This is the total number of base pairs in the sequence.
- Enter the AT Content (%): This represents the percentage of bases in the DNA sequence that are either Adenine (A) or Thymine (T).
- Click “Calculate” to see the results.

## Explanation and Limitations

The DNA Estimator Calculator calculates the approximate counts of GC, AT, and other bases in a DNA sequence based on user-provided GC and AT contents. The ‘GC Content (%)’ and ‘AT Content (%)’ can be any value from 0 to 100, but their combined value should not exceed 100% as they represent portions of the total sequence. The ‘Total Base Pairs’ should be a positive integer.

Limitations include an assumption of equally distributed base pairs and does not accommodate for sequencing errors or mutations that might affect actual counts.

## Use Cases for This Calculator

### Calculate the Probability of Paternity

Estimate the likelihood of a man being the biological father of a child based on their DNA profiles. Input the required genetic markers and compare them to determine the probability of paternity.

### Determine the Probability of Maternity

Assess the chances of a woman being the biological mother of a child by analyzing the DNA profiles of both individuals. Enter the genetic data and obtain the probability of maternity based on the comparison.

### Calculate the Likelihood of Siblingship

Evaluate the probability of two individuals being full or half-siblings by examining their DNA profiles. Enter the necessary genetic information to determine the likelihood of siblingship based on shared genetic markers.

### Estimate the Relationship Probability

Assess the probability of two individuals being related (e.g., cousins, aunt/uncle-niece/nephew) by analyzing their DNA profiles. Input the relevant genetic data and obtain the likelihood of their familial relationship.

### Determine Genetic Similarity Index

Capture the degree of genetic resemblance between two individuals by comparing their DNA profiles. Enter the genetic markers and compute the genetic similarity index to quantify their genetic relatedness.

### Assess the Probability of Grandparentage

Evaluate the probability of an individual being the biological grandparent of a child by analyzing their DNA profiles. Input the genetic information and calculate the likelihood of grandparentage based on shared genetic markers.

### Calculate the Probability of Avuncular Relationship

Determine the likelihood of an avuncular (aunt/uncle-niece/nephew) relationship between two individuals by examining their DNA profiles. Enter the relevant genetic data and obtain the probability of avuncularity based on shared genetic markers.

### Estimate Cousinship Probability

Assess the probability of two individuals being cousins based on their DNA profiles. Input the genetic markers and calculate the likelihood of cousinship to determine the degree of their genetic relationship.

### Determine the Likelihood of Half-Siblingship

Evaluate the probability of two individuals being half-siblings by comparing their DNA profiles. Input the required genetic information to calculate the likelihood of half-siblingship based on shared genetic markers.

### Calculate Ancestry Proportions

Analyze the genetic markers to estimate the ancestral proportions of an individual. Input the genetic data and calculate the percentages of different ancestries present in the DNA profile to determine the individual’s genetic heritage.