Use this tip calculator to quickly calculate a tip based on your bill amount and tip percentage. It also helps you split the bill between multiple people and optionally include sales tax—useful for restaurants, delivery, salons, rideshares, and any service where tipping is common. Tip Calculator Bill Amount ($) Tip Percentage (%) Common: 15%, 18%, […]
Use this fraction calculator to add, subtract, multiply, or divide fractions and mixed numbers. It automatically simplifies results and can show step-by-step work so you can understand how the answer was found. Fraction Calculator Fraction A Example: 2 / 3 Operation Add (+)Subtract (−)Multiply (×)Divide (÷) Show steps Fraction B Example: 2 / 3 Calculate
Fraction Calculator Read More »
Use this binary calculator to perform binary addition, subtraction, multiplication, and division for two binary values. You can also convert binary to decimal and decimal to binary instantly. Binary math is widely used in computing because digital systems naturally work with two states (0 and 1). Binary Calculation Binary A Use only 0 and 1.
Use this IRR calculator to compute the internal rate of return for an investment based on an initial investment and a series of cash flows. IRR is the discount rate that makes the net present value (NPV) of all cash flows equal to zero, making it a common metric for comparing project and investment profitability.
Use this percent error calculator to measure how far an observed (measured) value is from the true (accepted) value. It calculates percent error using the standard formula and also shows absolute error and relative error. You can optionally allow a signed percent error (negative results) to show whether the measurement is below or above the
Percent Error Calculator Read More »
Use this metric conversion chart to quickly convert common measurements between metric (SI) and U.S. customary units. You can also use the unit conversion calculator below to convert length, weight, volume, and temperature instantly—perfect for cooking, travel, schoolwork, and everyday measurements. Unit Conversion Calculator Category LengthWeightVolumeTemperature Value From To Convert Metric Conversion Chart for Common
metric to standard conversion calculator Read More »
Use this discount calculator to quickly find the final price after a percentage discount. Enter the original price and discount rate to calculate your savings, sale price, and optional tax. This tool is useful for shopping, promotions, and comparing deals. Discount Calculator Original Price ($) Discount (%) Sales Tax (%) (optional) Calculate Discount What Is
Discount Calculator Read More »
Use this chronological age calculator to measure the exact age (or time interval) between two dates. Results are shown in years, months, weeks, days, hours, minutes, and seconds—ideal for “how old am I” checks, forms, school requirements, and planning milestones. Age Calculator Date of Birth Age at the Date of Leave blank to use today.
Chronological Age Calculator Read More »
Use this long division calculator to divide a dividend by a divisor and see the full long division steps. You’ll get the quotient, remainder, and (optionally) a decimal result to the number of places you choose. It’s ideal for checking homework, learning the long division method, or verifying division with remainders. Dividend Divisor Decimal places
Long Division Calculator Read More »
Use this free ovulation calculator to estimate your ovulation date and fertile window based on the first day of your last period and your average cycle length. Results are estimates and work best for people with fairly regular cycles. Ovulation & Fertile Window Calculator First Day of Your Last Period Average Cycle Length (days) 2223242526272829303132333435363738394041424344
Ovulation Calculator – Predict Your Fertile Window Read More »