Free Online Calculators - Financial, Health, Date & More

Calculate mortgage payments with down payment

Calculate monthly payments and total interest

Calculate compound interest and future value

Calculate tips and split bills among people

Calculate exact age in years, months, and days

Calculate days between two dates

Count days until or since a target date

Calculate Body Mass Index with WHO classification

Calculate Basal Metabolic Rate and daily calories

Estimate body fat percentage using Navy method

Calculate due date from last menstrual period

Estimate calories burned during exercise

Calculate maximum weight for one repetition

Calculate daily water needs based on weight and activity

Calculate safe daily caffeine intake based on your profile

Perfect your coffee brewing with optimal ratios and timing

Calculate calories in your favorite coffee drinks

Get optimal settings for your coffee machine

Professional ADHD assessment based on DSM-5 criteria

Measure your attention span and focus ability

Analyze your productivity and time management skills

Correlate heart rate patterns with focus performance

Advanced math with trigonometry and logarithms

Calculate percentages and percentage changes

Calculate weighted GPA from grades and credits

Calculate price per unit for comparison shopping

Calculate percentage increase or decrease

Convert pet age to human years with care recommendations

Convert between MPG and L/100km fuel efficiency