Free Online Calculators & Tools

Calculate sale price, savings & double discounts.

Calculate EMI, total interest, and repayment amount.

Split bills and calculate gratuity instantly.

Convert hourly wages to annual or monthly income.

Add or remove sales tax, VAT, or GST from any price instantly.

Estimate monthly mortgage payments involving principal, interest & taxes.

Calculate simple & compound interest with growth charts.

Calculate monthly car payments with tax and trade-in support.

Count cash and calculate change breakdown.

Yearly breakdown of Principal vs Interest.

See specific interest rate differences.

Calculate interest saved by paying extra.

Start low, increase EMI yearly.

High start, decreasing EMI yearly.

Should you close your loan now?

Internal Rate of Return for investments.

Calculate SIP/Mutual Fund Returns.

Monthly income from investment.

Check your separation bonus.

CTC to Monthly In-Hand breakdown.

Inflation adjusted wealth check.

Compare Bank A vs Bank B.

How much loan can you get?

EMI after Moratorium/Course.

Interest on daily usage.

Nominal vs Effective Annual Yield.

Compound Annual Growth Rate.

Calculate investment growth (Lump Sum + SIP).

Value of future money today.

How much to save monthly?

Safety net for 3-6 months.

Future value of regular deposits.

Project your Net Worth.

How much do you need?

Project your future corpus.

Lump sum to monthly income.

Will money last? (4% Rule)

Mutual Fund returns.

One-time investment returns.

Transfer or Withdraw funds.

Financial Independence No.

Inclusive / Exclusive Tax.

Simple Slab Estimator.

Future cost of living.

Real value of money.

Estimate drilling, casing, and pump costs for a well.

Estimate budget with material breakdown.

Visualize yearly spending and detailed expense breakdown.

Compare relocation costs, taxes, and living expenses.

Compare Debt Snowball vs Avalanche payoff strategies.

Decide between paying cash or taking a loan and investing.

Track total debt balance, EMIs, and average interest rate.

Calculate simple interest on loans or investments using P×R×T formula.

Calculate compound interest with different compounding frequencies. See exponential growth in action.

Calculate percentages, fractions, and % change.

Simple arithmetic tool with history and keyboard support.

Advanced math tool with Trig, Logs, and Exponents.

Generate random numbers within a range. Supports unique & sorted lists.

Calculate Mean, Median, Mode, and Range instantly.

Add, Subtract, Multiply, and Divide fractions with mixed number results.

Solve ratios for X and simplify ratios instantly.

Round, Floor, Ceiling numbers.

Solve "2 + 3 * (5 - 1)" logic.

Find Square (√) & Cube (∛) roots.

Calculate Body Mass Index (Metric/Imperial).

Calculate your TDEE and daily calorie needs for weight loss or maintenance.

Determine your optimal daily water intake based on weight and activity.

Check your blood oxygen (SpO2) levels and health status.

Generate a wellness score based on lifestyle & biometrics.

Assess BMI thinness grades and get a safe weight gain plan.

Find dates for patterns like "2nd Tuesday of every month".

Full-screen timer with audio alarms and visual themes.

Countdown to next birthday, zodiac signs, and precise age.

Calculate exact age, time lived, and next birthday.

Calculate the duration and total days between any two dates.

Add or subtract hours/minutes and calculate time differences.

Check if any year is a leap year. Find leap years in a range.

Find ISO week number for any date. US and EU formats.

Find what day of the week any date falls on.

Convert between dates and day of year numbers.

Convert month numbers to names in multiple languages.

Live countdown showing days left in the current year.

Find next Friday, 2nd Tuesday, or any specific day.

Find what season any date falls in. Both hemispheres.

Countdown to your next birthday with zodiac sign.

Generate a list of dates between two dates.

Live countdown to any target time today.

Calculate cubic yards and bags (60lb/80lb) for slabs and footings.

Calculate Cement, Sand, and Aggregate for concrete.

Calculate rise, run, and stringer length for stairs.

Calculate Cement and Sand for wall plastering.

Calculate formwork area for Columns, Beams, and Slabs.

Estimate soil volume and truck trips with bulking factor.

Estimate drilling, casing, and pump costs for a well.

Design septic tank dimensions based on user count.

Calculate tank volume in Liters and estimate usage days.

Calculate slope, angle, and rafter length multiplier.

Estimate Gypsum sheets and ceiling cost.

Calculate bricks, cement, and sand for walls.

Estimate paint, primer, and putty for walls.

Calculate tiles and boxes for flooring.

Precise brick counting with mortar volume.

Sum up room areas to find total usable space.

Calculate weight of TMT bars (D²/162).

Estimate budget with material breakdown.

Estimate laminate packs and skirting.

Find correct AC size (1 Ton, 1.5 Ton).

Chemical quantity for soil treatment.

Truck loads for plot filling.

Gross Margin vs Markup.

Set prices & profit goals.

When will you profit?

Return on Investment.

Cost Per 1000 Impressions.

Return on Ad Spend.

Sales & Affiliate Payouts.

Visitor to Lead %.

Find best value & bulk savings.

Calculate percentage of each element in a compound.

Find empirical formula from mass percentages.

Calculate molecular formula from empirical formula.

Find the limiting reactant in a reaction.

Calculate (Actual ÷ Theoretical) × 100%.

Calculate expected product mass from reaction.

Convert between moles in chemical reactions.

Calculate P₁V₁ = P₂V₂ (constant temperature).

Calculate V₁/T₁ = V₂/T₂ (constant pressure).

Calculate P₁/T₁ = P₂/T₂ (constant volume).

Calculate with all gas law variables.

Calculate partial pressures of gas mixtures.

Calculate pOH from OH⁻ concentration.

Calculate [H⁺] from pH value.

Calculate buffer pH using Henderson-Hasselbalch.

Calculate ΔH for chemical reactions.

Calculate heat using q = mcΔT.

Calculate enthalpy by summing reaction steps.

Calculate heat transfer in calorimetry experiments.

Determine oxidation states of elements.

Calculate electrochemical cell potential (E°).

Calculate mass deposited in electrolysis.

Calculate weighted average of isotopes.

Find valence electrons from periodic table.

Calculate Kc and Kp for chemical equilibrium.

Calculate ΔG for spontaneity of reactions.

Predict your All India Rank based on your percentile and total number of candidates.

Calculate cellular respiration rate.

Calculate actual cell size from microscope view.

Calculate total magnification: objective × eyepiece.

Calculate exponential population growth.

Calculate allele frequencies: p² + 2pq + q² = 1.

Calculate enzyme reaction rates and activity.

Calculate rate of photosynthesis from data.

US Navy Method to estimate body fat percentage.

Calculate Basal Metabolic Rate (Calories burned at rest).

Calculate your ideal body weight using 4 proven formulas.

Calculate lean body mass (muscle + bone + organs) using Boer formula.

Assess health risk based on body fat distribution pattern.

Simple health check: keep waist under half your height.

Determine your body frame size (small/medium/large) via wrist measurement.

Calculate body fat % using US Navy method.

Calculate weekly hours, breaks, and overtime pay.

Calculate molecular weight from chemical formula.

Convert between moles, mass, and molecules.

Calculate solution concentration in mol/L.

Calculate concentration in mol/kg solvent.

Calculate dilution using C₁V₁ = C₂V₂.

Calculate using PV = nRT equation.

Calculate pH from H⁺ concentration.

Calculate Cement, Sand, and Aggregate for concrete.

Calculate rise, run, and stringer length for stairs.

Calculate Cement and Sand for wall plastering.

Calculate formwork area for Columns, Beams, and Slabs.

Estimate soil volume and truck trips with bulking factor.

Design septic tank dimensions based on user count.

Calculate tank volume in Liters and estimate usage days.

Calculate slope, angle, and rafter length multiplier.

Estimate Gypsum sheets and ceiling cost.

Calculate bricks, cement, and sand for walls.

Estimate paint, primer, and putty for walls.

Calculate tiles and boxes for flooring.

Precise brick counting with mortar volume.

Calculate weight of TMT bars (D²/162).

Estimate laminate packs and skirting.

Chemical quantity for soil treatment.

Truck loads for plot filling.

Find correct AC size (1 Ton, 1.5 Ton).

Calculate optimal study time distribution across subjects based on credits and difficulty.

Calculate your overall exam percentage from multiple subjects with different total marks.

Calculate your Cumulative Grade Point Average (CGPA) from semester SGPAs and credits.

Calculate your Semester Grade Point Average (SGPA) based on course credits and grades.

Calculate your GPA using the international 4.0 grading scale (A=4, B=3...).

Calculate your weighted class grade based on assignments, quizzes, and exams.

Find out exactly what score you need on your final exam to pass the class or get an A.

Calculate your engineering (PCM) or medical (PCB) cutoff marks out of 200.

Calculate what score you need on future tests to reach a target average.

Calculate the mean (average) of your test scores or grades instantly.

Calculate your total score and pass status combining internal internals and external exams.

Calculate your Semester Grade Point Average (SGPA) and check your final class/division status.

Calculate your final CGPA across all semesters and determine your overall degree classification.

Track your earned academic credits and see how close you are to graduation.

Calculate your attendance percentage and see how many classes you need to attend.

Track fertility, ovulation, and next period based on your cycle.

Calculate your due date based on your last period or conception date.

Predict ovulation date based on your menstrual cycle.

Find your most fertile days for conception planning.

Calculate Total Daily Energy Expenditure and calorie needs.

Calculate 1RM and training percentages for strength training.

Calculate running pace, speed, and split times.

Calculate aerobic fitness using Cooper 12-minute test.

Calculate daily macro needs (protein, carbs, fats) for your goals.

Calculate how long it will take to reach your weight goal.

Calculate daily calories for weight loss or gain goals.

Track infant growth velocity (g/day) with preterm correction.

Calculate net profit, taxes, and real hourly wage.

Calculate trade profit, loss, ROI and break-even price.

Comparison showing the power of investing vs saving.

Count significant figures in numbers.

Calculate percentage error in experiments.

Calculate measurement uncertainty.

Analyze experimental data and statistics.

Find the Least Common Multiple (LCM) of two or more numbers instantly.

Find the Highest Common Factor (Greatest Common Divisor) of two or more numbers.

Calculate squares, cubes, square roots, and cube roots of any number.

Calculate square roots with detailed steps and simplified radical form.

Calculate any base raised to any power (aᵇ). Supports negative and fractional exponents.

Calculate speed, time, or distance using the D = S × T formula.

Test your relationship compatibility score.

Calculate speed using distance and time. Speed = Distance ÷ Time.

Calculate velocity with direction. Velocity = Displacement ÷ Time.

Calculate acceleration. Acceleration = Change in Velocity ÷ Time.

Calculate distance using various motion formulas.

Calculate force using F = ma. Force = Mass × Acceleration.

Calculate momentum. Momentum = Mass × Velocity.

Calculate impulse. Impulse = Force × Time or Change in Momentum.

Calculate work done. Work = Force × Distance × cos(θ).

Calculate power. Power = Work ÷ Time.

Calculate kinetic energy. KE = ½ × Mass × Velocity².

Calculate dimensions and find aspect ratios for images and video.

Calculate real-time cost of meetings based on attendee salaries.

Sum up room areas to find total usable space.

Convert Acre, Bigha, Guntha, Sq.ft etc.

Find best bedtimes based on 90-minute sleep cycles.

Calculate perfect bedtime for desired sleep cycles.

Find optimal wake times from your bedtime.

Calculate menstrual cycle length and track regularity.

Predict when your next period will start.

Gross Margin vs Markup.

Set prices & profit goals.

When will you profit?

Return on Investment.

Cost Per 1000 Impressions.

Return on Ad Spend.

Sales & Affiliate Payouts.

Visitor to Lead %.