Free WordPress Plugin: These calculators find the distance between two points on a 2D plane, in a 3D space, as well as along the surface of the Earth with Lambert’s formulas. www.calculator.io/distance-calculator/

Free WordPress Plugin: This scientific calculator is a free tool that solves complex mathematical expressions by supporting several built-in functions. www.calculator.io/scientific-calculator/

Free WordPress Plugin: A feet and inches calculator helps with math problems. Add feet and inches, subtract, multiply, or divide them with ease. www.calculator.io/feet-and-inches-calculator/

Free WordPress Plugin: An online age calculator calculates age and date of birth by adding and subtracting time, including years, days, hours, minutes, and seconds. www.calculator.io/age-calculator/

Free WordPress Plugin: This IP subnet calculator makes subnetting easy, providing full subnet information like IP ranges, subnet masks and more from just basic network information. www.calculator.io/subnet-calculator/

Free WordPress Plugin: This free online tool converts common length, temperature, area, volume, weight, and time units. www.calculator.io/unit-converter/

Free WordPress Plugin: Relying on certain statistics and recommendations, this free protein calculator predicts how much protein a person needs each day to be healthy. www.calculator.io/protein-calculator/

在线科学计算器 Ernest's Web Scientific Calculator EC-82MS🍉

Free WordPress Plugin: This online dice roller uses random number generation to create a digital dice rolling experience with all sorts of beneficial uses. www.calculator.io/dice-roller/

Free WordPress Plugin: This free gasoline cost calculator evaluates the fuel cost of a journey using several units of measurement depending on fuel efficiency, distance, and gas price. www.calculator.io/gas-cost-calculator/

Free WordPress Plugin: This free salary calculator easily switches between hourly, bi-weekly, monthly, and yearly pay. Holidays and vacation days need special consideration and adjustments. www.calculator.io/salary-calculator/

Free WordPress Plugin: Random number generators have a variety of uses beyond picking a number to determine a prize winner. Find out what situations are ideal for them and how they solve problems. www.calculator.io/random-number-generator/

Free WordPress Plugin: PEMDAS calculator solves mathematical expressions with the order of operations - brackets, exponents, multiplication, division, addition, and subtraction. www.calculator.io/math-equation-solver/

Free WordPress Plugin: The simple interest calculator can be used to provide a quick and accurate calculation of interest assessed on a loan or investment. www.calculator.io/simple-interest-calculator/

Free WordPress Plugin: Percent calculator to calculate percentage of a number online. The calculator can find percentages and calculate discounts, taxes, and tips. www.calculator.io/percentage-calculator-online/

Free WordPress Plugin: Free margin calculator using the margin formula ((R - C) / R) × 100 to help businesses quickly calculate both margin and markup percentages based on cost and sale price. www.calculator.io/margin-calculator/

Free WordPress Plugin: Scientific notation calculator converts numbers to scientific notation, e-notation, engineering notation, and adds, subtracts, multiplies or divides them. www.calculator.io/scientific-notation-calculator/

Free WordPress Plugin: The odds probability calculator can convert the odds of winning and losing to the probability of winning and losing. Learn the differences between odds and probability. www.calculator.io/odds-calculator/

Free WordPress Plugin: Online hex calculator performs hex math operations and conversions. Hex addition, hex subtraction, hex multiplication, hex division became fast & easy www.calculator.io/hex-calculator/

Free WordPress Plugin: Free return on investment (ROI) calculator that helps investors calculate return on investment, investment gain, and annualized ROI rates. www.calculator.io/roi-calculator/