1. What is mg per kilogram calculation?

The mg per kilogram calculation is used to determine the total amount of a substance (in milligrams) in a given weight of food based on its concentration (in mg per kg). This is commonly used in nutrition, food science, and safety assessments.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( mg/kg \) — Concentration of substance in milligrams per kilogram
• \( \text{Food Weight} \) — Weight of the food sample in kilograms
• \( mg \) — Total milligrams of substance in the food sample

Explanation: This calculation converts a concentration (mg/kg) to an absolute amount (mg) based on the food portion size.

3. Importance of mg/kg calculation

Details: This calculation is essential for determining nutrient content, assessing food safety limits, calculating dietary intake, and formulating food products with specific ingredient concentrations.

4. Using the Calculator

Tips: Enter the concentration in mg/kg and the food weight in kilograms. Both values must be positive numbers. The calculator will compute the total milligrams of substance in the food portion.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between mg/kg and ppm?
A: For most practical purposes in food science, mg/kg is equivalent to parts per million (ppm) when dealing with dilute solutions.

Q2: How do I convert from μg/kg to mg/kg?
A: Divide μg/kg by 1000 to get mg/kg (since 1 mg = 1000 μg).

Q3: Can I use this for liquid foods?
A: Yes, as long as you know the weight (not volume) of the liquid sample in kilograms.

Q4: How accurate is this calculation?
A: The calculation is mathematically precise, but accuracy depends on the precision of your input measurements.

Q5: What if my food weight is in grams?
A: Convert grams to kilograms by dividing by 1000 before entering the value (e.g., 500g = 0.5kg).