Registered Dietitian Nutritionist; MSc Nutrition Science.

Priya Venkatesan

Contributor, Health & Fitness

0 calculators 0 articles Member since Jun 2026

Website

About

Priya covers body composition, macro tracking, and everyday health screening tools. She is careful to flag limitations — calculators are meant to inform, not diagnose — and links every tool back to peer-reviewed sources.

She spent five years in a hospital outpatient nutrition clinic before moving into consumer health writing.

Areas of expertise

Body composition Nutrition Fitness metrics

Education & credentials

BSc Dietetics — University of Sydney
MSc Nutrition Science — King's College London

Biology / Genetics

Test Cross Probability Calculator

Compute the probability that a single offspring shows the recessive phenotype for a single autosomal gene, given the gen...

basic

5,714 4.7 1 min

Health

SIRS Systemic Inflammatory Response Calculator

Evaluates the four SIRS criteria (temperature, heart rate, respiratory rate/PaCO₂, WBC) and reports how many are met. SI...

basic

24,381 4.1 1 min

Health

Maximum Heart Rate (Tanaka Formula) Calculator

Estimate age-predicted maximum heart rate using the Tanaka equation HR_max = 208 − 0.7 · age, considered more accurate t...

basic

3,120 4.1 1 min

Health / Calories

Recommended Protein Intake Calculator

Compute daily protein intake from body weight and an activity-adjusted protein factor (sedentary 0.8 g/kg through endura...

basic

18,703 4.3 1 min

Health

Alveolar Gas Equation (PAO₂) Calculator

Compute the alveolar partial pressure of oxygen PAO₂ from the alveolar gas equation: PAO₂ = (P_atm − P_H₂O) · FiO₂ − PaC...

basic

6,084 3.9 1 min

Health

Absolute Neutrophil Count (ANC) Calculator

Compute the absolute neutrophil count (ANC) from total white blood cell count and the differential percentages of segmen...

basic

12,191 4.4 1 min

Everyday Life

Blood Alcohol Content Time-to-Sober-Up Calculator

Estimates BAC using Widmark: BAC = (alcohol_g) / (weight_kg × r) − 0.015 × hours. r ≈ 0.68 males, 0.55 females. Time to...

basic

5,167 4.9 1 min

Fitness / Running

Target Heart Rate Calculator (Karvonen)

Use the Karvonen formula to compute a target heart rate that respects your resting heart rate, not just your age.

basic

8,590 4.4 1 min

Health / Body Metrics

QTc (Bazett) Calculator

Compute the corrected QT interval (QTc) using the Bazett formula QTc = QT / √RR. Uses RR derived from heart rate (RR sec...

basic

23,745 4.8 1 min

Statistics / Probability

A/B Test Required Sample Size Calculator

Calculates the sample size per variant needed for an A/B test: n ≈ 2 × [z_α/2 + z_β]² × p̄(1−p̄) / (p₁−p₂)², using the p...

basic

6,128 4.8 1 min

Physics

Refractive Index from Speed of Light in Medium Calculator

Calculates the refractive index n = c/v_medium, where c = 299,792,458 m/s. Also computes angle of refraction via Snell's...

basic

8,702 4.6 1 min

Health

Bicarbonate Deficit Calculator

Estimate the bicarbonate deficit needed to correct a metabolic acidosis to a target HCO₃ of 24 mEq/L: deficit = 0.5 · we...

basic

22,220 4.0 1 min

Showing 85 to 96 of 348 results

guide Health

Reading a Calorie Calculator Without Turning Food Into a Spreadsheet

Estimated daily calories are a loose target, not a contract. A quick guide to using the number without letting it use you.

Priya Venkatesan

Apr 29, 2026 3 min

explainer Health

BMI in Context: What the Number Does and Does Not Tell You

BMI is a one-number screen, not a diagnosis. Here is how to read it honestly — and what to look at alongside it.

Priya Venkatesan

Apr 9, 2026 3 min

Best Free Calculator

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Priya Venkatesan

Test Cross Probability Calculator

SIRS Systemic Inflammatory Response Calculator

Maximum Heart Rate (Tanaka Formula) Calculator

Recommended Protein Intake Calculator

Alveolar Gas Equation (PAO₂) Calculator

Absolute Neutrophil Count (ANC) Calculator

Blood Alcohol Content Time-to-Sober-Up Calculator

Target Heart Rate Calculator (Karvonen)

QTc (Bazett) Calculator

A/B Test Required Sample Size Calculator

Refractive Index from Speed of Light in Medium Calculator

Bicarbonate Deficit Calculator

Reading a Calorie Calculator Without Turning Food Into a Spreadsheet

BMI in Context: What the Number Does and Does Not Tell You