Everyday Life
Health, cooking, cars and home projects — the everyday calculators you actually reach for, all together.
Health10
BMI & Calorie Calculator (TDEE)
Body mass index plus daily calories by activity level.
VO₂ Max Calculator
Estimate your VO₂ max from a 12-minute run or your resting heart rate.
Daily Water Intake Calculator
Recommended daily water from your weight and activity level.
Pregnancy Due Date Calculator
Estimated due date and how many weeks pregnant, from your last period.
Target Heart Rate Calculator
Max heart rate and fat-burn and cardio training zones by age.
Calorie Deficit Calculator
Turn a daily calorie deficit into an estimated weekly weight loss.
Macro Calculator
Split daily calories into grams of protein, carbs and fat.
Ovulation Calculator
Estimate your fertile window and ovulation day from your last period.
Conception Date Calculator
Estimate the likely conception date from an estimated due date.
Sleep Cycle Calculator
The best times to wake up or go to bed, aligned to 90-minute sleep cycles.
Kitchen & Recipes16
Recipe Cost Calculator
Total cost and cost per serving from your ingredient list, with a cost breakdown chart.
Recipe Calories & Macros Calculator
Total calories, protein, carbs and fat per serving from your ingredient list, with a macro split chart.
Recipe Scaler
Scale any recipe's ingredient quantities up or down by servings or a custom factor.
Kitchen Measurement Converter
Convert cups, tablespoons, grams, milliliters and more — by ingredient, so weight and volume match.
Oven Temperature Converter
Convert oven temperatures between °C, °F and Gas Mark.
Coffee-to-Water Ratio Calculator
How many grams of coffee to use for your water, by method and ratio.
Roast Cooking Time Calculator
Roasting time from the weight and type of meat, with editable minutes per kg.
Coffee Composition
Espresso, milk and foam poured layer by layer, in the real proportions of every coffee drink.
Scoville Scale
The heat of chili peppers in Scoville units, shown as a flame that grows with the spice.
Meat Doneness Guide
Cooking time and doneness for beef, pork and chicken, with an animated cross-section of the cut.
Interactive Pasta Recipe
Classic pasta recipes step by step, with servings that scale and a built-in cooking timer.
Cocktail Recipes
Six classic cocktails poured layer by layer, with exact amounts and the story behind each one.
Aperol Spritz Recipe Calculator
The classic 3-2-1 Aperol Spritz scaled to any number of glasses, poured layer by layer.
Hugo Spritz Recipe Calculator
Prosecco, elderflower and soda in the exact 3-2-1 ratio, scaled to any number of glasses.
Espresso Martini Recipe Calculator
Vodka, coffee liqueur and espresso in exact measures, shaken with ice and scaled to any number of glasses.
Classic Margarita Recipe Calculator
The 2-1-1 classic margarita from scratch — on the rocks or frozen — scaled to any number of glasses.
Auto & Transport05
Fuel Economy Calculator
Fuel economy in L/100km, km/L and MPG from distance and fuel used.
Trip Fuel Cost Calculator
Fuel cost of a trip from distance, consumption and fuel price.
Car Affordability Calculator
Maximum car price from your monthly budget, rate, term and down payment.
Car Depreciation Calculator
What a car will be worth after a few years, with a value chart.
Lease vs Buy Calculator
Which is cheaper — buying or leasing a car over the same term.
Construction & DIY06
Concrete Calculator
Concrete volume and bags for slabs, columns, footings and DIY jobs.
Square Meters Calculator
Area from length and width, plus conversions between m², ft², and more.
Water Tank Capacity Calculator
Volume in litres and gallons for rectangular and cylindrical tanks.
Paint Calculator
Litres of paint needed from wall area, coats and coverage.
Wallpaper Calculator
Rolls of wallpaper needed from wall size, roll size and pattern repeat.
BTU Calculator
Air-conditioner size (BTU) a room needs from area and conditions.