All Calculator Tools
Browse our complete collection of free online calculators for global users.
Zakat Calculator
Calculate 2.5% Zakat on cash, gold, silver, and other assets per Islamic rulings.
Income Tax Calculator
Pakistan FBR 2025–26 salary tax slabs — calculate your exact income tax.
Profit & Loss Calculator
Calculate profit, loss, margin, markup, and cost price for any business.
Percentage Calculator
Calculate percentages, percentage change, and what percent X is of Y.
Discount Calculator
Find final price after percentage or flat discounts instantly.
Age Calculator
Calculate exact age in years, months, days and when your next birthday is.
Pregnancy Due Date Calculator
Calculate your expected delivery date from last menstrual period (LMP).
BMI Calculator
Calculate your Body Mass Index in metric or imperial units and see your healthy weight range.
Sleep Calculator
Find the best bedtime or wake-up time based on 90-minute sleep cycles for maximum rest.
Blood Sugar Converter
Convert blood glucose between mg/dL and mmol/L with normal range reference and health tips.
Diabetes Risk Calculator
Assess your risk of Type 2 diabetes based on lifestyle and health factors with prevention tips.
BMR Calculator
Calculate your Basal Metabolic Rate using the Mifflin-St Jeor formula and see your daily calorie needs by activity level.
Calorie Calculator
Find your Total Daily Energy Expenditure (TDEE) and get goal-based calorie targets for weight loss, maintenance, or muscle gain.
Ovulation Calculator
Estimate your ovulation date and 6-day fertile window from your last menstrual period and average cycle length.
Body Fat Calculator
Calculate your body fat percentage using the U.S. Navy circumference method with metric or imperial measurements.
Ideal Weight Calculator
Find your ideal body weight using 4 formulas (Devine, Robinson, Miller, Hamwi) plus a BMI-based healthy weight range.
Water Intake Calculator
Calculate your daily recommended water intake based on your weight, activity level, and climate.
Calories Burned by Activity Calculator
Estimate the number of calories burned during walking, running, swimming, cycling, and more.
Heart Rate Zone Calculator
Calculate your target heart rate zones for different types of workouts.
Daily Protein Intake Calculator
Calculate your optimal daily protein requirements based on your weight and fitness goals.
Intermittent Fasting Calculator
Calculate your fasting and eating windows and track your fast with a live countdown timer.
Solar System Size Calculator
Calculate how many solar panels you need for your home or office in Pakistan.
Time Zone Converter
Convert time between Karachi, London, New York, Dubai, and more.
URL Encode/Decode
Encode or decode URL strings and query parameters instantly.
Image Compressor
Compress JPEG/PNG images in your browser with adjustable quality.