Free Online Calculators & Converters – Health, Finance & Time
Simplify your daily calculations with our free online tools. Check your health stats, manage finances, calculate exact age, and handle developer time conversions instantly.
Health, Finance & Utility Tools
From calculating BMI to converting Unix timestamps, access a wide range of utilities designed to solve specific problems quickly and accurately.
Percentage Calculator
Calculate percentages, increases, decreases, and percentage differences instantly.
BMI Calculator
Check your Body Mass Index (BMI) and health category based on height and weight.
Age Calculator
Calculate your exact age in years, months, weeks, and days from your date of birth.
Zakat Calculator
Determine the accurate Zakat amount owed on your gold, silver, and savings.
Roblox DevEx Calc
Calculate the real-world USD value of your Robux based on current DevEx rates.
Unix Timestamp
Convert Unix epoch timestamps to human-readable dates and vice versa instantly.
Cron Job Generator
Create and schedule cron jobs easily with a visual interface for Linux servers.
Age in Days
Calculate your exact age in total days lived.
Age in Weeks
Find out exactly how many weeks old you are.
BMI for Kids
Calculate Body Mass Index specifically for children and teens.
BMR Calculator
Determine your Basal Metabolic Rate and daily calorie needs.
Body Fat %
Estimate your body fat percentage based on measurements.
Break Even Calc
Calculate the point where costs match revenue for your business.
Currency % Calc
Calculate percentage changes in currency values.
Date Difference
Calculate the exact number of days between two dates.
Days to Weeks
Convert a number of days into weeks and remaining days.
Discount Calc
Calculate the final price after a discount percentage is applied.
Speed & Time
Calculate distance, speed, or time given the other two variables.
EMI Calculator
Calculate Equated Monthly Installments for loans and mortgages.
Fuel Cost Calc
Estimate the total fuel cost for a road trip based on MPG and distance.
Hourly to Salary
Convert your hourly wage into a yearly salary equivalent.
Time Difference
Calculate the number of hours and minutes between two times.
Ideal Weight
Find your ideal healthy weight range based on height and frame.
Inflation Calc
Calculate the change in purchasing power of money over time.
Minutes to Hours
Convert minutes into hours and minutes format.
Monthly to Yearly
Calculate annual salary from your monthly income.
Mortgage Calc
Estimate monthly mortgage payments based on loan details.
Overtime Pay
Calculate overtime earnings based on hourly rate and hours worked.
% Decrease Calc
Calculate the percentage decrease from one value to another.
% Difference Calc
Find the percentage difference between two numbers.
% Increase Calc
Calculate the percentage increase from an initial value.
Due Date Calc
Estimate your pregnancy due date and track baby's progress.
Profit Margin
Calculate gross and net profit margins for your products.
ROI Calculator
Calculate Return on Investment for your business ventures.
Salary to Hourly
Convert your yearly salary to an equivalent hourly rate.
Sales Tax Calc
Calculate sales tax and the final total price for purchases.
Savings Growth
Project how your savings will grow over time with interest.
Time Duration
Calculate the total duration between two distinct times.
Tip Calculator
Calculate gratuity and split the bill easily among friends.
VAT Calculator
Calculate Value Added Tax (VAT) to add or remove from a price.
Water Intake
Estimate your daily water intake needs based on activity.
Weeks to Months
Convert a number of weeks into months and remaining days.
Work Hours
Track your total work hours, including breaks and overtime.
Zakat Business
Calculate Zakat due on your business assets and inventory.
Zakat Cash
Calculate Zakat on your liquid cash and bank savings.