Calculators
Free online calculators for everyday, finance, health, education and home — each one shows its formula and worked examples so you can see exactly how the result is reached.
Popular in Tanzania
Everyday
Percentage Calculator
Free percentage calculator: find what X% of a number is, what one number is as a percent of another, and percentage increase or decrease.
EverydayAge Calculator
Free age calculator: find your exact age in years, months and days, plus total days, weeks and months from any date of birth.
EverydayDate Difference Calculator
Free date difference calculator: count the days, weeks, months and years between any two dates, with a full breakdown. Fast, free and accurate.
EverydayTip Calculator
Free tip calculator: split a restaurant bill, calculate the tip amount and see the total per person in seconds. Works with any tip percentage.
EverydayDiscount Calculator
Free discount calculator: find the final price after a percentage discount and see exactly how much you save. Great for sales and deals.
EverydayTime Zone Converter
Free time zone converter: find the current time in any city or time zone instantly, with world clock support and live clock comparisons.
EverydayAverage Calculator
Free average calculator: enter any list of numbers to instantly find the mean, sum and count. Clear steps and examples, accurate and free — no sign-up needed.
EverydayStandard Deviation Calculator
Free standard deviation calculator: find the mean and population or sample standard deviation of a set of numbers, with clear step-by-step working.
Finance
Mortgage Calculator
Free mortgage calculator: estimate your monthly mortgage payment, total interest and total repayment for any loan amount, rate and term.
FinanceLoan Calculator
Free loan calculator: estimate monthly payments, total interest and total repayment for personal, auto and other installment loans.
FinanceCompound Interest Calculator
Free compound interest calculator: project investment growth with monthly contributions and see total interest earned over time.
FinanceSalary to Hourly Calculator
Free salary to hourly calculator: convert an annual salary to an hourly, daily, weekly and monthly rate based on your work hours.
FinanceRetirement Calculator
Free retirement calculator: estimate how much your savings will grow by retirement age with annual contributions and compound returns.
FinanceCurrency Converter
Free currency converter with live exchange rates: convert between USD, TZS and 100+ other world currencies instantly. No sign-up needed.
FinanceTanzania PAYE Calculator
Free Tanzania PAYE calculator: see PAYE income tax and your salary after PAYE only — NSSF/PSSSF and other deductions are not included.
FinanceTanzania Salary Calculator
Free Tanzania salary calculator: work out net take-home pay after NSSF/PSSSF, PAYE and HESLB — and the real cost to your employer.
FinanceMobile Money Fee Calculator
Free Tanzania mobile money fee calculator: see M-Pesa, Airtel, Mixx, T-Pesa and HaloPesa send and withdrawal charges before you get charged.
FinanceMobile Money Comparison
Compare mobile money fees across M-Pesa, Airtel, Mixx, T-Pesa and HaloPesa. See the cheapest provider and your potential saving for any amount.
FinanceTanzania VAT Calculator
Free Tanzania VAT calculator: add or remove 18% VAT on any amount in TZS, showing the VAT amount and total. Accurate for invoices and pricing.
FinanceUTT Calculator
Free UTT AMIS unit trust calculator — project the future value of your UTT investment in Tanzania with monthly contributions.
FinanceInflation Calculator
Free inflation calculator: see how inflation affects purchasing power over time — future value or what money is worth today. Adjust for any rate.
FinanceDebt-to-Income Ratio Calculator
Free debt-to-income (DTI) ratio calculator: enter monthly debt and gross income to instantly find the % of income going to debt, with healthy-range guidance.
FinanceTanzania NSSF Calculator
Free Tanzania NSSF calculator: see your employee and employer NSSF contributions and net take-home pay after tax. No sign-up needed.
FinanceTanzania PSSSF Calculator
Free Tanzania PSSSF calculator for public servants: 5% employee + 15% employer contributions, net take-home pay and an estimate of your retirement pension.
FinanceTanzania Employer Cost Calculator
Free Tanzania employer cost calculator: see the true cost of hiring staff with NSSF, SDL and WCF employer contributions. No sign-up needed.
FinanceTanzania SDL Calculator
Free Tanzania Skills Development Levy (SDL) calculator: work out the 3.5% employer levy on your monthly payroll. Fast and free, no sign-up.
FinanceTanzania WCF Calculator
Free Tanzania Workers Compensation Fund (WCF) calculator: work out the 0.5% employer contribution on your monthly payroll. Fast, free, no sign-up.
FinanceTanzania HESLB Calculator
Free Tanzania HESLB calculator: work out the 15% student loan deduction from your monthly salary and your take-home pay. No sign-up needed.
FinanceTanzania Service Levy Calculator
Work out Tanzania's service levy at the fixed 0.25% rate on business net turnover, introduced on 1 July 2025 and paid quarterly to your local authority.
FinanceTanzania Presumptive Tax Calculator
Work out Tanzania's presumptive (turnover) tax from annual turnover, with the flat annual rates for taxi, ride-hailing, tour and goods vehicles.
FinanceTanzania Withholding Tax Calculator
Check the Tanzanian withholding tax rate for rent, dividends, interest, royalties, service fees and more, and the amount to withhold from a payment.
FinanceTanzania Vehicle Registration Fees Calculator
What TRA charges to register a vehicle in Tanzania: the 250,000 registration tax, the licence fee by engine capacity, the HIV Response Levy and transfer fees.
FinanceLoan Affordability Calculator
Work out how much you can borrow from your income, existing repayments, interest rate and term — the affordable monthly payment turned into a loan amount.
FinanceTanzania NHIF Contribution Calculator
Work out the Tanzanian health insurance (NHIF) contribution: 3% of salary from the employee plus 3% from the employer, with no ceiling. See both shares.
FinanceTanzania Property Tax Calculator
Work out Tanzanian stamp duty on a property transfer and the capital gains tax a seller owes — 10% resident, 30% non-resident, or 3% with no cost evidence.
FinanceDepreciation Calculator
Calculate depreciation by straight line, declining balance or sum of years' digits, or use Tanzania's Income Tax Act class rates for a tax allowance.
Health
BMI Calculator
Free BMI calculator: check your body mass index in metric or imperial units and see which weight category you fall into.
HealthCalorie Calculator
Free calorie calculator: estimate your BMR and daily TDEE (maintenance calories) using the Mifflin-St Jeor equation — accurate for weight loss or gain.
HealthPregnancy Due Date Calculator
Free pregnancy due date calculator: estimate your baby's due date and conception date from the first day of your last period.
HealthBody Fat Calculator
Free body fat percentage calculator using the US Navy method — estimate body fat from height, neck, waist and hip measurements.