Everyday | Mr. Calco

Find your chronological age in years, months, and days from any birth date — plus total weeks and days lived. Useful for…

Pick a shape, enter the dimensions, and get the area in square metres and square feet — for rooms, plots, craft projects…

Estimate bra size from underbust (band) and bust circumference, with a measuring guide and cross-chart labels. Shape and…

Switch between kitchen volume units, or convert a volume of a named ingredient to grams — densities differ, so weight al…

Count the calendar span between any two dates in days and weeks — handy for contracts, travel planning, project deadline…

Pick a target date (and optional “from” date) to see days remaining, whole weeks, and a rough months estimate. Past date…

Enter your measurements to find a ready-to-wear size, or convert between major women’s dress-size charts. Brands still v…

Enter distance driven, fuel used, and optional price per litre. You get metric consumption (L/100km), the same figure as…

Convert hat sizes from head circumference or labelled sizes. Measure above the ears and mid-forehead for the most reliab…

Estimate children’s clothing size from height. European labels often match height in centimetres; US/UK age bands are ro…

Convert waist sizes for pants and jeans across common labelling systems, and measure your waist the right way for a bett…

Convert ring sizes across major systems, or enter inside diameter/circumference in millimetres. Measure your finger for …

Convert adult shoe sizes across major systems and learn how to measure your feet properly. Results are estimates — brand…

Enter the bill, tip percentage, tax percentage, and party size. Get a clear breakdown and what each person owes when spl…

Enter a start time and a duration to add or subtract. Results wrap past midnight and can show 12-hour or 24-hour format.…

Enter the bill, tip percentage, and how many people are splitting. Get the tip amount, grand total, and each person’s sh…