💊 Vitamins & Minerals Calculators

Vitamin D dosage, iron intake, calcium needs, omega-3, electrolyte, supplement cost, and daily value percentage calculators.

Vitamin D Dosage Calculator

Calculate your recommended daily vitamin D intake in IU based on your current blood level, target level, body weight, and sun exposure.

Iron Intake Calculator

Determine your recommended daily iron intake based on age, gender, pregnancy status, and dietary pattern. Includes vegetarian multiplier and upper limits.

Calcium Needs Calculator

Calculate your daily calcium needs based on age and gender, estimate dietary intake from dairy servings, and find whether you have a calcium gap.

Omega-3 Calculator

Estimate your weekly EPA and DHA omega-3 intake from fish and supplements, and compare it to American Heart Association recommendations.

Electrolyte Calculator

Calculate your sodium, potassium, and magnesium needs during exercise based on body weight, workout duration, sweat rate, and temperature.

Supplement Cost Calculator

Calculate the true cost of your supplement routine — per-dose cost, annual spending, and cost per individual supplement.

Daily Value Percentage Calculator

Calculate the percentage of Daily Value (%DV) for any nutrient based on the amount consumed and the FDA reference daily value. Identify when intake exceeds 100%.