Free Calculators Tools
Calculators for money, math, health and time. Work out percentages, discounts, tips, VAT, loan payments, compound interest, BMI, calories and more — with clear results and instant answers, no signup required.
Percentage Calculator
X% of Y, percentage change, and more.
CalculatorsDiscount Calculator
Sale prices with discount % and savings.
CalculatorsAge Calculator
Exact age in years, months, days.
CalculatorsBMI Calculator
Body Mass Index with healthy range.
CalculatorsVAT Calculator
Add or remove VAT at any rate.
CalculatorsLoan Calculator
Monthly payment, total interest, schedule.
CalculatorsCompound Interest Calculator
Growth with regular contributions.
CalculatorsTip Calculator
Tip amount and per-person split.
CalculatorsDate Difference Calculator
Days, weeks, months between two dates.
CalculatorsMortgage Calculator
Home loan payment with down payment.
CalculatorsSalary Calculator
Convert salary between hour, day, month, year.
CalculatorsGPA Calculator
Weighted GPA from grades and credits.
CalculatorsDate Calculator
Add or subtract days, months, years.
CalculatorsCalorie Calculator
Daily calorie needs for goals.
CalculatorsProfit Calculator
Margin, markup and profit per unit.
CalculatorsAverage Calculator
Mean, median, mode, range, SD.
CalculatorsBMR Calculator
Basal metabolic rate (Mifflin-St Jeor).
CalculatorsFuel Cost Calculator
Trip fuel and cost estimates.
CalculatorsGrade Calculator
Weighted final grade from components.
CalculatorsPace Calculator
Running pace, time & distance.
CalculatorsTime Calculator
Add and subtract times and durations.
CalculatorsBody Fat Calculator
Body fat % via US Navy method.
CalculatorsAspect Ratio Calculator
Compute dimensions for any aspect ratio.
CalculatorsSimple Interest Calculator
I = P × r × t, instantly.
CalculatorsFraction Calculator
Add, subtract, multiply, divide fractions.
CalculatorsDistance Calculator
Speed × time distance computations.
CalculatorsTest Grade Calculator
Score points → grade with IKI-style scale.
CalculatorsProtein Calculator
Daily protein target by body & goal.
CalculatorsRatio Calculator
Solve ratios and scale values.
Calculators