Finds the annual percentage rate implied by a loan amount, its up front fees and its payment schedule, solving for the rate by bisection.

Estimates an AP World History: Modern score from raw multiple choice, short answer, DBQ and long essay points using the published section weights.

Estimates an APUSH score from raw section marks using the published exam weightings and a fixed, stated set of cutoffs rather than a secret curve.

Estimates an AP English Language and Composition result from raw multiple choice and essay points, using the published 45 and 55 percent section weights.

Solves one equation in one variable when it reduces to linear or quadratic form, showing the standard form, the solution and a substitution check.

See how long a goal weight takes at a given daily calorie deficit, or get a daily calorie target from your age, size, sex and activity level.

Turn your guest count and reception length into bottles and cases of beer, wine and spirits, plus champagne for the toast.

Turn a tire size such as 225/45R17 into a real diameter, and compare two sizes to see the change in height, revolutions and speedometer reading.

Add up hours worked from clock-in and clock-out times or a week of daily hours, subtract unpaid breaks, and turn the result into regular and overtime pay.

Solve two equations in x and y, or three in x, y and z, by elimination. Enter each coefficient and get the solution and the determinant.

Find the monthly payment on a student loan over a fixed term, or work out how long a payment you choose takes to clear the balance and what the interest costs.

See what a starting balance and a monthly deposit grow to with monthly compounding, or find the deposit needed to hit a savings goal on time.

Convert pay between hourly, daily, weekly, bi-weekly, monthly and annual figures using your own hours per week and paid weeks per year.

Work out the monthly payment, total interest and total cost of a loan on an RV, camper or motorhome, from the amount financed or the sticker price.

Round a number to a set count of decimal places or to the nearest tenth, ten, hundred or thousand, with half up, down and up shown side by side.

Measure return on investment as a percentage, with net profit and an annualized rate that makes holdings of different lengths comparable.

Estimate your ascendant from your birth date and the time of day, using the two hour shortcut astrologers use when no birth chart is handy.

Project what your savings grow to by retirement from a yearly contribution and an expected return, and see the nest egg a target income needs.

Compare your current loan with a new rate and term to see the change in monthly payment, the break-even month on closing costs and the lifetime difference.

Solve any quadratic equation by entering a, b and c. Returns both roots, real or complex, with the discriminant, the vertex and the axis of symmetry.

Turn a pay rise into real numbers: new hourly, weekly or annual pay, the size of the increase, and the percentage it works out to.

Turn a distance and a finish time into pace per mile and per kilometer, or work the other way and get a finish time from a target running pace.

Estimate your 1RM for the bench press, squat or any lift from the weight and reps of a working set, using the Epley or Brzycki formula.

Estimate the zodiac sign the Moon was in when you were born from your birth date, time and time zone, using the Moon's mean longitude.

Split a daily calorie target into grams of protein, carbohydrate and fat, using either a preset for your goal or your own percentage split.

Count the combinations behind any lotto draw and get the exact odds of a jackpot, plus the chance of matching a smaller number of balls.

Divide two whole numbers and see every step: what the divisor goes into, what you subtract and the remainder carried to the next digit.

See how many months are left on a loan at your current payment, and how much time and interest an extra payment each month would save.

Reduce a birth date to its numerology life path number, keeping the master numbers 11, 22 and 33, and see the keyword traditionally tied to it.

Count forward from an embryo transfer date to an estimated due date, using the age of the embryo at transfer for day 3, day 5 and day 6 cycles.

Work out simple interest on a principal, or compound interest at yearly, quarterly, monthly or daily rests, with the effective annual rate shown.

Find a reference body weight for your height and sex with the Devine formula, plus the pound or kilogram range that falls inside a healthy BMI.

Work out a maximum home price from your income, existing debt payments, down payment and a debt-to-income limit, with the monthly payment those numbers imply.

Estimate the interest-only payment during a home equity line of credit draw period, the larger payment that follows, and how big a line you could open.

Work out what fuel will cost for a trip from the distance, your vehicle economy and the pump price, in miles and MPG or kilometres and litres per 100 km.

See how much interest an extra monthly payment saves on a mortgage and how many years it removes, or work backwards from a target payoff date.

Estimate a pregnancy due date from the first day of the last period or from a known conception date, with the trimester dates and the 37 week full term mark.

Differentiate a polynomial in x with the power rule, and get the second derivative, the slope at any point and the tangent line there.

Find the volume of a box or a cylinder in cubic feet from measurements in inches, feet, yards, centimeters or meters, with yards and gallons too.

Work out the concrete for a slab, footing or round column in cubic yards, cubic feet and cubic metres, with a bag count for 60 and 80 pound premix.

Work back from a due date, a birth date or the first day of your last period to an estimated conception date and the likely window around it.

Work out how a balance grows when interest is added back to the principal, with yearly, monthly or daily compounding and optional regular deposits.

Work out what a certificate of deposit is worth at maturity from the APY or the nominal rate, and see the interest a given term actually earns.

Compare your current car loan with a refinance offer to see the new payment, the monthly saving, the interest difference and how long the fees take to pay back.

Estimate the calories you need each day from your sex, age, height, weight and activity level, with targets for losing or gaining weight.

Estimate body fat percentage from height, neck and waist measurements using the US Navy method, with fat mass, lean mass and a category for the result.

Estimate the calories your body burns at rest with the Mifflin St Jeor equation, then see daily totals for four common activity levels.

Enter a birth date to get the sun sign with its symbol, element, modality, ruling planet and opposite sign, plus the Chinese zodiac animal for that year.

Convert American, decimal and fractional betting odds, then see the payout, the profit and the implied probability for any stake you enter.

Find the monthly payment and total interest on a car loan after a down payment and trade-in, or work backwards from the payment you can afford.

Build a loan payment schedule: monthly payment, total interest, the principal and interest split of the first payment, and the balance left after any number of payments.

Work out the monthly payment on a home loan from the amount, rate and term, with or without property tax and insurance added in.

Calculate your Body Mass Index (BMI) with our free BMI Calculator. Determine if your weight is in the healthy range based on your height.

Calculate board feet, log scale measurements, and lumber costs with our free Wood Board Feet Calculator. Essential for woodworkers, carpenters, and DIY enthusiasts.

Calculate optimal camera exposure settings with our free Camera Exposure Calculator. Determine aperture, shutter speed, ISO, and equivalent exposures for perfect photos.

Calculate the moon phase for any date with our free Moon Phase Calculator. View illumination percentage, lunar age, and upcoming phases.

Create custom knitting patterns with our free Knitting Pattern Calculator. Calculate stitch counts, row counts, and shaping instructions based on your gauge and desired dimensions.

Calculate and visualize your biorhythm cycles with our free Biorhythm Calculator. Track physical, emotional, and intellectual rhythms based on your birth date.

Generate Fibonacci sequences with our free calculator. Find specific terms, view step-by-step calculations, and explore the mathematical properties of this fascinating sequence.

Calculate Golden Ratio proportions with our free online calculator. Find the perfect balance for design, art, architecture, and mathematics with the divine proportion (? = 1.618).

Convert between different units of measurement with our free Conversion Calculator. Supports length, weight, temperature, area, volume, speed, time, pressure, energy, and digital storage conversions.

Convert numbers to words instantly with our Number to Words Converter. Support for currency format and ordinal numbers. Perfect for financial documents, education, and accessibility.

Calculate earthquake energy and impact with our Richter Scale Calculator. Convert magnitude to energy release, compare with historical earthquakes, and understand potential effects.

Convert text to ASCII values instantly with our Text to ASCII Converter. Display results in decimal, hexadecimal, and binary formats for all your encoding needs.

Convert times between different time zones easily with our Timezone Converter. Plan international meetings, calls, and travel with accurate time zone calculations.

Generate colorful, authentic-sounding pirate names for parties, games, creative writing, or fun with our Pirate Name Generator. Yarr, find your perfect seafaring identity!

Calculate loan payments, total interest, and generate amortization schedules with our comprehensive Loan Payment Calculator. Plan your finances with precision.

Convert hexadecimal (base-16) numbers to decimal (base-10) instantly with our Hex to Decimal Converter. Includes step-by-step calculations and binary equivalents.

Calculate your dog's age in human years with our accurate Dog Age Calculator. Considers breed size, weight, and modern veterinary research for precise age conversion.

Generate creative, otherworldly names for aliens, science fiction characters, and extraterrestrial species with our customizable Alien Name Generator.

Instantly check if a number is prime, find its factors, and discover the nearest prime numbers with our comprehensive Prime Number Checker.

Analyze your text with our comprehensive Text Counter. Count characters, words, sentences, paragraphs, and get detailed statistics instantly.

Calculate network address, broadcast address, usable IP range, and more with our comprehensive IP Subnet Calculator.

Convert hexadecimal color codes to RGB values instantly. Support for multiple output formats and HSL conversion.

Calculate remaining weeks in the current year instantly. Essential for planning, goal setting, and project management. Quick results.

Generate secure, random UUIDs instantly. Perfect for developers and system administrators. Cryptographically strong version 4 UUIDs.

Convert between Roman numerals and Arabic numbers instantly. Perfect for historical dates and formal documents. Quick and accurate.

Create authentic Renaissance period names instantly. Perfect for writers, historians, and creative projects. Includes historical context.

Generate random Powerball numbers instantly. Create multiple combinations for lottery entries. Quick, easy, and truly random picks.

Multiply any number by pi (?) instantly. Essential for geometry, physics, and engineering calculations. Quick and accurate results.

Calculate pi (?) to any decimal place. Perfect for mathematics, engineering, and scientific calculations. Fast and precise results.

Create authentic medieval names instantly. Perfect for writers, role-players, and history enthusiasts. Includes historical context.

Convert between linear values and decibels (dB). Essential for audio engineering and signal processing. Quick and precise calculations.

Calculate precise values of e raised to any power. Essential for mathematics, science, and engineering applications. Fast and accurate.

Calculate the exact number of calories burned during sleep based on your personal metrics. Optimize your rest and weight management goals.

Convert between plain text and Base64 format instantly. Perfect for developers and system administrators. Secure, fast, and reliable.

Calculate bandwidth and rise time relationships in electronic systems. Essential for signal analysis and circuit design. Fast, accurate results.

Discover your perfect frontier persona with cowboy name generator. Create authentic West characters for RP, gaming.

Easily convert fractions into precise decimal values using our online, fast and free Fraction to Decimal Calculator.

Discover real price per unit with calculator. Quickly convert total cost into a clear per-unit figure, more cost-effective purchases.

Effortlessly calculate time differences, add or subtract durations, and plan schedules with our time calculator.

Calculate precise time differences between dates and times instantly with our easy-to-use time duration calculator tool.

Discover your love compatibility with Love Calculator. Enter your names to find out your love percentage instantly.

Quickly calculate confidence intervals for any dataset with our fast & accurate Confidence Interval Calculator.

Calculate your General Weighted Average (GWA) esaily. Input grades and credits to get results instantly with our GWA calculator.

Quickly add or subtract years, months, weeks, and days from any date with precision using this Date Calculator tool.

Compute the cross product of two 3D vectors, including step-by-step results and detailed vector component calculations.

Quickly calculate standard deviation, variance, mean, and more for both population and sample datasets with our calculator.

Quickly solve exponential expressions and simplify complex calculations with our easy-to-use exponent calculator.

Effortlessly calculate discounts and sale prices with our Discount Calculator. Shop smart, save more, and make informed buying decisions.

Quickly calculate percentages with our Percentage Calculator. Perfect for solving math problems, financial calculations, and everyday tasks.

Effortlessly calculate the Least Common Multiple (LCM) with our Calculator. Perfect for solving math problems quickly and accurately.

Quickly determine the Greatest Common Factor (GCF) with our efficient and easy-to-use GCF Calculator.

Quickly and accurately calculate your tips with our easy-to-use Tip Calculator. Perfect for splitting bills and ensuring fair contributions.

Rounding numbers and preserving precision with our significant figures calculator. Ideal for scientific and mathematical applications.

Discover how old you are in years, months, days, hours, minutes, and seconds with our comprehensive age calculator tool.

Generate strong, random passwords instantly based on your preferences with our secure password generator tool.

Calculate future value of investments with our tool. Plan savings, compound interest, and financial goals effortlessly.

Big factorial calculator is an online tool designed to compute the factorial of any number instantly. Fast, Accurate, Free.

Permutation and combination calculator simplifies calculations, quick, accurate results for selecting or arranging items with ease.

Average (mean) calculator is a online, free, accurate tool designed to quickly calculate the mean of any dataset.

Calculate square root, cube root or any n root of any number with step by step solution. Online root calculator tool, free and fast!

You can easily calculate Slope, Degrees, Distance, Points and see all steps explained by using this slope calculation tool!