Calculators

Loan calculators

• EMI Calculator

  Compare a monthly payment with the interest paid over the whole term. A lower EMI can simply mean paying interest for longer. Use the home-loan comparison when you want to model prepayments and ownership costs.

• Home Loan Prepayment Calculator

  Keeping EMI unchanged usually repays the modeled balance sooner. Reducing EMI frees monthly cash while recalculating over the original remaining term. Compare interest savings with your available cash; this model does not estimate returns from investing that cash elsewhere.

• Credit Card EMI Calculator

  Look beyond the advertised interest rate. Fees and GST affect cash paid, while the effective annual cost measures the timing of those cash flows. Compare any cash-payment discount separately; it is not included here.

Investment calculators

• SIP Calculator

  The invested amount is your contributions; the gain or loss is the difference from the projected value. Try a lower return as well as your central estimate. This is a constant-return scenario, not a prediction of fund performance.

• Lumpsum Calculator

  Use this for one initial investment with no later cash flows. The projected gain is before any charges and taxes. Compare the future amount with inflation separately when considering purchasing power.

• SWP Calculator

  Compare total withdrawals with the remaining balance. A high withdrawal can exhaust the fund, even with a positive assumed return. Actual fluctuating returns can cause depletion earlier or later than a constant-return projection.

• Mutual Fund Returns Calculator

  Absolute return measures the overall gain; CAGR expresses an equivalent steady annual growth rate. Neither describes volatility. If you added or withdrew money along the way, use XIRR with dated cash flows instead.

• XIRR Calculator

  Use money leaving your pocket as negative and money received as positive. Include a final portfolio valuation as a receipt if you want to measure a holding you still own. XIRR annualizes the dated cash flows; it does not forecast the next year.

Savings calculators

• FD Calculator

  The interest shown is gross modeled interest. Match the compounding choice to the deposit product. A payout deposit, premature withdrawal or tax deduction can produce a different amount from this cumulative projection.

• RD Calculator

  Recurring deposits combine contributions made at different times. Match your bank’s quoted rate, installment dates and maturity rules. This simplified projection excludes missed-installment charges and premature closure adjustments.

• PPF Calculator

  Read the result as a projected balance over the selected years, not a promised maturity date. It assumes the annual deposit qualifies for a full year of interest. A fixed input rate cannot predict future administered rates.

• EPF Calculator

  Enter the salary base used for your contribution and the employer percentage actually credited to EPF. The employer’s total retirement contribution can include EPS, which is not an EPF balance. Salary changes and withdrawals are outside this projection.

• Sukanya Samriddhi Yojana Calculator

  This is a simplified annual-deposit projection. The account-opening date, eligible monthly balances and future rate changes can make the actual statement differ. Eligibility and withdrawal decisions should be checked against the scheme rules.

Tax calculators

• Income Tax Calculator FY 2025–26

  Choose the income basis carefully. Already-taxable income has eligible deductions applied before entry; the salary option subtracts only the modeled standard deduction. This tool covers one specified year and regime, not all filing circumstances.

• GST Calculator

  Choose Add GST when the entered price excludes tax, or Remove GST when it includes tax. The selected rate is your assumption; this tool does not determine product classification, eligibility or place-of-supply rules.

Housing & Building

• Concrete Calculator

  Estimate slab or cylindrical concrete volume and bag quantities.

• BTU Calculator

  Estimate a room’s cooling capacity in BTU/h, watts and tons.

• Square Footage Calculator

  Calculate room and shape areas in square feet, metres and yards.

• Stair Calculator

  Plan equal risers and estimate a straight stair flight’s run.

• Roofing Calculator

  Estimate pitched roof area and material allowance from the plan.

• Tile Calculator

  Estimate floor tiles and boxes with a cutting and waste allowance.

• Mulch Calculator

  Estimate landscaping volume and the amount of material to order.

• Gravel Calculator

  Estimate landscaping volume and the amount of material to order.

Fitness calculators

• BMI Calculator

  Calculate adult body mass index and understand its screening range.

• Calorie Calculator

  Estimate daily maintenance energy from resting needs and activity.

• Body Fat Calculator

  Estimate body-fat percentage from adult circumference measurements.

• BMR Calculator

  Estimate resting energy expenditure with the Mifflin–St Jeor equation.

• Ideal Weight Calculator

  Compare legacy height-based weight estimates with the adult BMI range.

Math calculators

• Basic Math Calculator

  Calculate with a keyboard or keypad, with answer and memory controls.

• Scientific Calculator

  Calculate with a keyboard or keypad, with answer and memory controls.

• Fraction Calculator

  Add, subtract, multiply and divide fractions or mixed numbers exactly.

• Percentage Calculator

  Find a percentage, compare values or apply a percentage change.

• Random Number Generator

  Generate random integers, with optional sampling without duplicates.

• Percent Error Calculator

  Measure absolute percentage error against a reference value.

• Exponent Calculator

  Raise a number to a positive, negative or fractional power.

• Binary Calculator

  Calculate exact integer results and convert between number bases.

• Hex Calculator

  Calculate exact integer results and convert between number bases.

• Half-Life Calculator

  Solve a constant exponential-decay model for the missing quantity.

• Quadratic Formula Calculator

  Solve quadratic and linear equations, including complex roots.

• Log Calculator

  Find logarithms in any valid positive base, including e and 10.

• Ratio Calculator

  Simplify a ratio or solve a missing term in a proportion.

• Root Calculator

  Find square, cube and higher real roots.

• Least Common Multiple Calculator

  Find the LCM and GCF of a list of whole numbers exactly.

• Greatest Common Factor Calculator

  Find the LCM and GCF of a list of whole numbers exactly.

• Factor Calculator

  List positive factors and the prime factorization of an integer.

• Rounding Calculator

  Round decimals exactly, including negative values and ties.

• Matrix Calculator

  Add, multiply, transpose, invert or find a matrix determinant.

• Scientific Notation Calculator

  Convert decimals and E notation without losing large-number digits.

• Big Number Calculator

  Perform exact arithmetic on large integers and decimal values.

Statistics calculators

• Standard Deviation Calculator

  Calculate sample and population spread, variance and summary statistics.

• Number Sequence Calculator

  Generate arithmetic, geometric or Fibonacci terms, or check a simple pattern.

• Sample Size Calculator

  Estimate survey responses needed for a proportion and margin of error.

• Probability Calculator

  Combine event probabilities or calculate a binomial distribution.

• Statistics Calculator

  Summarize a dataset, including quartiles, modes, variance and spread.

• Mean, Median, Mode, Range Calculator

  Summarize a dataset, including quartiles, modes, variance and spread.

• Permutation and Combination Calculator

  Count ordered and unordered selections using exact integer arithmetic.

• Z-score Calculator

  Standardize a value and inspect standard-normal tail probabilities.

• Confidence Interval Calculator

  Estimate a mean or proportion interval with the appropriate model.

Geometry calculators

• Triangle Calculator

  Solve triangles from sides and angles, including both SSA solutions.

• Volume Calculator

  Calculate volume and total surface area for common geometric solids.

• Surface Area Calculator

  Calculate volume and total surface area for common geometric solids.

• Slope Calculator

  Find the slope, rise, run and equation of a line through two points.

• Area Calculator

  Find the area of rectangles, triangles, circles and other plane shapes.

• Distance Calculator

  Find 2D or 3D Cartesian distance and the midpoint between two points.

• Circle Calculator

  Solve a circle from its radius, diameter, circumference or area.

• Pythagorean Theorem Calculator

  Solve right-triangle sides, acute angles, area and perimeter.

• Right Triangle Calculator

  Solve right-triangle sides, acute angles, area and perimeter.