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Calculators

Privacy-first, browser-side calculations. Solve math equations, compute statistics, split group bills, estimate due dates, or parse running paces.

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Math Calculators

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Scientific Calculator

Advanced scientific calculator with trigonometry, logarithms, powers, and memory functions.

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Percentage Calculator

Calculate percentages, percentage increases/decreases, and values.

Calculate percentarrow_forward
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GCD & LCM Calculator

Find the Greatest Common Divisor and Least Common Multiple of two integers.

Calculate GCD/LCMarrow_forward
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Prime Factorization Calculator

Find all prime factor steps for any positive integer.

Factor numberarrow_forward
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Factorial Calculator

Calculate the factorial (n!) of any positive integer.

Calculate factorialarrow_forward
functions

Logarithm Calculator

Compute logarithm base 10, natural log (ln), or custom bases.

Calculate logarrow_forward
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Descriptive Statistics Calculator

Calculate mean, median, mode, variance, and standard deviation.

Calculate statsarrow_forward
functions

Quadratic Equation Solver

Find roots of quadratic equations ax² + bx + c = 0.

Solve equationarrow_forward

Everyday & Utility Calculators

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Recipe Scaler

Easily scale recipe ingredients up or down for any number of servings.

Scale recipesarrow_forward
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Bill Splitter & Tip Calculator

Easily split group bills and calculate exact tip portions.

Split the billarrow_forward
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Unit Price Comparator

Compare value-for-money between two different price/quantity items.

Compare pricesarrow_forward
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Reading Time Estimator

Estimate content reading time based on total word count.

Estimate timearrow_forward
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Fuel Cost Calculator

Calculate fuel expenses for custom road trip travel distances.

Calculate costarrow_forward

Finance & Loan Calculators

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Compound Interest Calculator

Calculate future wealth value using compound interest formulas.

Calculate interestarrow_forward
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Loan EMI Calculator

Calculate monthly loan EMI payments and total interest schedules.

Calculate EMIarrow_forward
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Simple Interest Calculator

Calculate simple interest earnings on investments.

Calculate interestarrow_forward
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Return on Investment (ROI)

Evaluate investment returns and profitability percentages.

Calculate ROIarrow_forward
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Break-Even Point Calculator

Determine required unit sales to cover fixed manufacturing costs.

Calculate break-evenarrow_forward
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Discount & Sale Calculator

Calculate sale prices and final savings amounts.

Calculate discountarrow_forward
payments

Hourly to Salary Converter

Convert hourly wages to weekly, monthly, and annual equivalents.

Convert salaryarrow_forward
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Margin, Markup & Retail Profit Calculator

Calculate cost, revenue, profit margin, and markup percentages.

Calculate profitarrow_forward
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Inflation & Purchasing Power Calculator

Calculate historical and future inflation and purchasing power.

Calculate inflationarrow_forward
savings

401(k) / FIRE Retirement Calculator

Estimate your retirement nest egg and safe withdrawal rate.

Plan retirementarrow_forward
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Credit Card Debt Payoff Calculator

Compare minimum payments vs fixed monthly payments for credit card debt.

Calculate payoffarrow_forward

Real Estate Calculators

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Capitalization Rate (Cap Rate)

Calculate property capitalization rates based on NOI.

Calculate cap ratearrow_forward
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Rental Yield Calculator

Calculate Gross and Net rental yields for properties.

Calculate yieldarrow_forward
account_balance

Property Tax Calculator

Estimate annual property tax based on assessed values.

Calculate taxarrow_forward
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Mortgage Early Payoff Calculator

Shorten mortgage terms and save on interest by making extra payments.

Calculate payoffarrow_forward

Health & Fitness Calculators (Safe Subset)

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TDEE & Macro Calculator

Calculate your Total Daily Energy Expenditure and get a macro split.

Calculate macrosarrow_forward
bedtime

Sleep Cycle Calculator

Find optimal bedtimes based on 90-minute sleep cycles.

Calculate sleeparrow_forward
pregnancy

Pregnancy Due Date Calculator

Estimate delivery dates using Naegele's rule (LMP + 280 days).

Calculate due datearrow_forward
calendar_month

Ovulation Cycle Calculator

Identify peak fertility windows based on LMP and cycle lengths.

Track cyclearrow_forward
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Running Pace Calculator

Calculate average running pace or time goals for set training distances.

Calculate pacearrow_forward
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More coming soon

We are building new browser-based tools every week.