• Coffee Ratio Calculator
    Calculate how much water you need from your coffee dose and brew ratio. Enter grams of coffee and a ratio like 1:15 for the perfect cup.
  • Coffee Kick Calculator
    Estimate how much caffeine remains in your body after any number of hours using the ~5.7 hour caffeine half-life formula.
  • Cold Brew Ratio Calculator
    Calculate how many grams of ground coffee you need for cold brew based on water volume and your coffee-to-water ratio (typical 1:8).
  • Coffee to Water Ratio Calculator
    Calculate the perfect coffee-to-water ratio. Enter your coffee or water amount and brew ratio to get the other measurement in grams.
  • Uncooked to Cooked Rice Calculator
    Convert uncooked rice to cooked rice yield instantly. Enter cups, grams, or ounces and a yield ratio to see exactly how much cooked rice you'll get.
  • Fresh to Dry Herb Conversion Calculator
    Convert fresh herbs to dried in any recipe. Uses the standard 3:1 ratio — divide fresh by 3 to get the equivalent dried amount. Free and instant.
  • Calories to Pounds Calculator
    Convert calories to pounds (and kilograms) of body fat. Uses the standard 3,500 calories per pound rule to estimate fat-loss equivalents.
  • Omega-3 For Dogs Calculator
    Calculate the recommended daily omega-3 (EPA + DHA) dose for your dog based on metabolic body weight. Enter weight in kg or lb for an instant estimate.
  • Raw Dog Food Calculator
    Calculate how much raw food to feed your dog per day. Enter weight and feeding rate (2-3%) to get daily, per-meal and weekly grams.
  • Cat Calorie Calculator
    Estimate your cat's daily calorie needs from weight and life stage using the RER formula (70 × kg^0.75) and an activity factor.
  • Dry Matter Basis Calculator
    Convert a nutrient value from an as-fed basis to a dry matter basis. Enter the nutrient % and moisture % to get the dry matter basis percentage.
  • Fat Intake Calculator
    Calculate your recommended daily fat intake in grams from your total calories and target fat percentage. Free, instant, and easy to use.
  • Dog Food Calculator
    Calculate how much food your dog needs per day based on weight, activity level and food calorie density. Get daily calories and grams to feed.