All calculators
Choose from 76 working tools. Every result includes the method and practical limitations.
Date & Time
Plan dates and understand elapsed time with calendar-aware calculations.
Age Calculator
Find completed years, months and days on any selected date.
Date & TimeDate Difference Calculator
Count elapsed days or days until a selected future date.
Date & TimeDate Calculator
Add or subtract days, weeks, months or years from a date.
Date & TimeBusiness Days Calculator
Count Monday-to-Friday days between dates, excluding entered holidays.
Date & TimeTime Duration Calculator
Find elapsed days, hours and minutes between two UTC timestamps.
Date & TimeTime Zone Converter
Convert a local date and time between IANA zones, including DST overlaps and gaps.
Date & TimeFinance
Explore payments, yields and growth with explicit financial assumptions.
Bond Yield Calculator
Compare a bond's current yield with a calculated nominal yield to maturity.
FinanceCompound Interest Calculator
Estimate growth when interest is added to the balance repeatedly.
FinanceSimple Interest Calculator
Calculate fixed-principal interest and a final amount over a chosen term.
FinanceLoan Payment Calculator
Estimate a fixed monthly payment and total interest on a loan.
FinanceMortgage Calculator
Estimate a monthly home budget with loan payment, tax, insurance, HOA and entered mortgage insurance.
FinanceAmortization Calculator
Follow each monthly principal and interest payment through loan payoff.
FinanceCAGR Calculator
Turn a start-to-end change into an equivalent annual growth rate.
FinanceROI Calculator
Compare net gain or loss with the original investment cost.
FinanceInvestment Calculator
Project a future balance with an opening amount and monthly deposits or SIP instalments.
FinanceSavings Goal Calculator
Work backward from a target balance to a monthly saving amount.
FinanceInterest Rate Calculator
Solve a fixed loan's nominal interest rate from amount, payment and term.
FinanceLoan Affordability Calculator
Work backward from your chosen monthly debt limit to a modeled loan amount.
FinanceGold Jewellery Quote Checker
Check a gold item quote from its weight, matched-purity rate and entered charges.
FinanceRent vs Buy Calculator
Compare buying with a home loan against renting and investing the difference, year by year.
FinanceBusiness
Price, margin, break-even, commission and tax arithmetic for sellers and freelancers.
Profit Margin Calculator
Compare gross profit, margin on sales and markup on direct cost.
BusinessBreak-Even Calculator
Find the minimum whole-unit sales needed to cover modeled costs.
BusinessCommission Calculator
Calculate flat commission above a threshold and add base pay.
BusinessTax on Price Calculator
Add or extract one flat tax rate that you enter on a price.
BusinessFreelance Hourly Rate Calculator
Model an hourly quote from annual pay, expenses and billable time you choose.
BusinessSalary & Pension
Pay, tax-slab, service-length and retirement-benefit arithmetic with the governing rule named.
Hourly to Salary Calculator
Project gross annual pay and period averages from hourly wages.
Salary & PensionPakistan Salary Tax Calculator
Estimate annual tax and monthly after-tax salary from entered taxable pay under FBR tax year 2027 slabs.
Salary & PensionAge / Service Calculator
Find your service length, superannuation date and remaining service from your birth and joining dates.
Salary & PensionPension Calculator
Estimate a federal government pension, its commutation lump sum and net monthly pension.
Salary & PensionGratuity Calculator
Calculate gratuity from your last wages and service dates under the rule that applies to you.
Salary & PensionGP Fund Calculator
Project a federal General Provident Fund balance from the official subscription and yearly interest rate.
Salary & PensionBenevolent Fund Calculator
Look up the benevolent fund deduction, group insurance premium and family grant for your pay.
Salary & PensionIslamic
Zakat, Fitrana and Ushr arithmetic that keeps the religious ruling with your chosen scholar.
Zakat Estimate Calculator
Estimate 2.5% of entered net zakatable wealth using your nisab and anniversary choices.
IslamicFitrana Calculator
Work out Fitrana for your whole family from the Council's 2026 amounts, your scholar's rate or local food prices.
IslamicUshr (Ushar) Calculator
Calculate ushr on a harvest: one-tenth for rain-fed land, one-twentieth where watering has a cost.
IslamicHealth
Use clear screening and estimation tools with practical limits explained.
Pregnancy Due Date Calculator
Estimate a due date and count weeks since the last menstrual period.
HealthAdult BMI Calculator
Calculate adult body mass index from weight and height.
HealthTDEE Calculator
Estimate adult daily energy expenditure from a resting equation and activity level.
HealthMacro Split Calculator
Convert your chosen Calorie total and macro percentages to approximate grams.
HealthPredicted BMR Calculator
Predict basal metabolic rate using the FAO/WHO/UNU 1985 weight-only Table 5 equations.
HealthRFM Body Fat Estimate
Estimate body-fat percentage with the original Woolcott–Bergman height-to-waist equation.
HealthWater Intake Calculator
Count what remains toward a beverage-volume goal you set yourself.
HealthConverters
Move between defined units with transparent conversion factors.
Volume Converter
Convert common metric, US liquid and Imperial volume units.
ConvertersLength Converter
Convert metric and international customary lengths through meters.
ConvertersWeight Converter
Convert metric mass and avoirdupois pounds or ounces.
ConvertersTemperature Converter
Convert physical temperatures across Celsius, Fahrenheit and Kelvin.
ConvertersArea Converter
Convert room and land areas with squared unit factors.
ConvertersSpeed Converter
Convert speed rates using distance and time definitions.
ConvertersTime Converter
Convert elapsed durations in fixed seconds, minutes, hours, days and weeks.
ConvertersData Storage Converter
Convert bits and decimal or binary byte units with exact prefixes.
ConvertersNumber Base Converter
Convert whole integers among binary, octal, decimal and hexadecimal.
ConvertersCurrency Converter
Convert currencies with your own rate or an on-demand daily reference rate, while keeping provider fees separate.
ConvertersMarla & Kanal Converter
Convert marla, kanal, sarsai, square feet, square yards and acres using the marla size your record uses.
ConvertersMath
Solve everyday number questions and see the calculation method.
Percentage Calculator
Find a percentage of any positive or negative number.
MathFraction Calculator
Calculate fractions exactly or convert one fraction to decimal form.
MathRatio Calculator
Simplify a two-part ratio, split a total and solve an equivalent pair.
MathAverage Calculator
Calculate the arithmetic mean of a list and compare its median.
MathPercentage Increase Calculator
Measure a signed change relative to a positive starting value.
MathDiscount Calculator
See an item price after a single percentage discount.
MathScientific Calculator
Evaluate documented real-number expressions with explicit degree or radian mode.
MathArea and Volume Calculator
Calculate geometric area or volume for four named shapes from matching length units.
MathEquation Solver
Solve ax² + bx + c = 0 for real x, including linear and degenerate cases.
MathWriting & Creator
Inspect drafts and use transparent creator utilities with clear limits.
Word Counter
Count words and Unicode characters without sending your text away.
Writing & CreatorYouTube Income Estimate Calculator
Explore a revenue scenario using your own YouTube RPM and view count.
Writing & CreatorName to Nickname Generator
Try transparent short forms, endings and initials from a name you enter.
Writing & CreatorPassword Generator
Generate a random password locally with your selected length and character groups.
Writing & CreatorQR Code Generator
Turn entered text or a link into a locally rendered, downloadable QR image.
Writing & CreatorTyping Speed Calculator
Turn a typing test's characters, errors and time into gross WPM, net WPM and accuracy.
Writing & CreatorEducation
Work through course averages with your institution's grading rules in view.
GPA Calculator
Add courses, choose letter grades and credit hours, then calculate a weighted GPA.
EducationCGPA Calculator
Combine semester GPAs by their credit hours to estimate cumulative GPA.
EducationWeighted Grade Calculator
Find your current weighted standing and the score needed on remaining work.
EducationMarks Percentage Calculator
Turn obtained marks and total possible marks into a raw percentage.
EducationEveryday Costs
Estimate entered travel, energy and shared-bill costs with assumptions visible.
Fuel Cost Calculator
Estimate fuel volume and trip cost from distance, economy and your price.
Everyday CostsElectricity Cost Calculator
Estimate device kWh and a flat-rate period cost from watts and runtime.
Everyday CostsSplit Bill Calculator
Divide subtotal, entered tax and a pre-tax tip into equal or weighted shares.
Everyday CostsConstruction, Tiles & Paint Calculator
Estimate an area-based building budget, full tile boxes or paint cans using your own project prices and allowances.
Everyday Costs