Calculators
BMI, mortgage, investment, currency, tax and everyday calculators
Free online calculators for calories, BMI, pregnancy, sleep, mortgages, tax, tips, GPA, loans, currency and everyday money math.
Health calculators
Calories, BMI, pregnancy, sleep, heart rate and other estimates.
Calorie / TDEE Calculator
Daily calories to maintain, lose or gain weight from Mifflin-St Jeor
BMI Calculator
Calculate Body Mass Index and get health category insight
BMR Calculator
Calculate Basal Metabolic Rate using Mifflin-St Jeor formula
Macro Calculator
Split daily calories into protein, carbs and fat in grams
Body Fat Calculator
Estimate body fat percentage using the Navy formula
Ideal Weight Calculator
Devine, Robinson, Miller, Hamwi and the BMI 18.5 to 24.9 range
Pregnancy Due Date
Estimated due date, gestational age and trimester from last period
Sleep Calculator
Bedtimes or wake times in 90-minute sleep cycles, with AM/PM
Heart Rate Zones
Training zones from age, resting pulse, Fox or Tanaka max HR
Water Intake Calculator
Daily water target from weight, exercise, climate and pregnancy
Running Pace Calculator
Pace from a race time plus 5K to marathon predictions
A1C Calculator
Convert HbA1c to estimated average glucose. You enter the lab number
Blood Pressure Chart
Enter systolic and diastolic from your cuff to see the AHA adult category
Money & loans
Mortgage, interest, salary, tax and payoff tools.
Mortgage Calculator
Calculate monthly payments, total interest and amortization
Stamp Duty Calculator
Estimate UK stamp duty or Australian transfer duty on a home purchase
Pakistan Stamp Duty
Estimate provincial stamp duty and 236K withholding on a property purchase
Pakistan Withholding Tax
Estimate WHT on property, vehicle and cash withdrawal
Investment Calculator
Project future value of investments with regular contributions
Compound Interest
Calculate compound interest with flexible compounding frequency
Profit Margin Calculator
Calculate profit, margin, markup, selling price, cost price and ROI
Salary Tax Calculator
Income tax and take-home pay by country and tax year, plus US state tax, UK student loan and AU HELP
Pakistan Salary Slip
FBR salaried tax, editable EOBI and PF, plus custom deductions on a printable monthly slip
Sales Tax Calculator
Add sales tax to a price or remove it from a total, for all 50 US states
Paycheck Calculator
Estimate your US take-home pay after federal tax, Social Security and Medicare
Auto Loan Calculator
Work out your monthly car payment, total interest and amortization schedule
Credit Card Payoff
See how long to clear your balance and what paying extra would save
Retirement Calculator
Project your retirement savings including employer match and IRS limits
Hourly to Salary
Convert an hourly wage to a yearly salary and every cadence in between
GST / VAT Calculator
Add or remove GST and VAT from any amount
PTA Mobile Tax
Estimate DIRBS handset tax on 80+ 2026 phones, plus GST on a prepaid load
Pakistan Token Tax
Estimate annual motor vehicle token tax by province and engine size
Net Worth Calculator
Add up what you own and what you owe to see where you actually stand
Inflation Calculator
See what any amount of money is worth in another year using US CPI data
Debt Payoff Calculator
Plan the snowball or avalanche method and see which clears your debts cheaper
Savings Goal Calculator
Work out how much to put aside each month to hit a target by a date
Gold Price Calculator
Work out how much your gold is worth by weight and karat - per gram, tola, ounce, pound, kilo or tonne
Gold Rate Today Pakistan
Live PKR gold rate per tola and gram for Karachi, Lahore and Islamabad
Dollar Rate Today PKR
Live US dollar to Pakistani rupee rate with a quick converter
Mileage / Expense Log
Log trips and claim IRS, HMRC or ATO mileage rates as a CSV
Zakat Calculator
Calculate zakat on cash, gold, silver, stocks and business assets with gold or silver nisab
Prize Bond Checker
Check prize bond numbers against a draw list or National Savings page
Electricity Bill Estimator
Estimate a residential electricity bill from units and typical slabs
Everyday splits & discounts
Tips, discounts, rent splits, GPA and currency.
Math Solver
Snap or paste a photo of a printed equation, or type it, and get the answer with steps
Tip Calculator
Calculate tip amount and split the bill between multiple people
Discount Calculator
Calculate sale price, savings and discount percentage
Currency Converter
Convert between 170+ currencies with live exchange rates
GPA Calculator
Work out your GPA on the 4.0 scale from letter grades or percentage marks, with credit hours
Rent Split Calculator
Split rent and shared bills evenly, by income, by room size or by nights stayed
Bill Split Card
Split a bill equally, by percent, by amount, or "one person paid", then generate a dramatic or calm share card for the group chat
Frequently asked questions
Yes. Results update instantly and normal use does not require an account.
No lasting archive of calculator inputs is kept for these client-side tools.
Use Mortgage, Auto Loan or the EMI Calculator in Math & Finance depending on the loan type.
No. Calorie, pregnancy, A1C, blood pressure and the other health tools are estimates you run in the browser. They are not medical advice. A clinician confirms lab work, blood pressure and pregnancy dating.