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/

Advanced calculator plugin for Wox

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: 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 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: The Blood Alcohol Concentration Calculator provides an accurate estimate of your current blood alcohol concentration based on several key inputs and personal characteristics. www.calculator.io/bac-calculator/

Free WordPress Plugin: This calorie calculator computes how many calories are required daily to maintain, decrease, or gain weight. Learn about the different types of calories and how they affect you. www.calculator.io/calorie-calculator/

Free WordPress Plugin: The free Body Mass Index calculator, also known as BMI, computes and classifies BMI for children and adults using data obtained from WHO and CDC. www.calculator.io/bmi-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: Binary calculator for binary to decimal conversion, decimal to binary conversion, binary operations – addition, subtraction, multiplication, division. www.calculator.io/binary-calculator/

Free WordPress Plugin: This free body fat calculator uses the US Navy and BMI methods to approximate body fat percentage. It provides weight loss information to help you achieve your ideal body fat. www.calculator.io/body-fat-percentage-calculator/

Free WordPress Plugin: This amortization calculator will show you how much your monthly payments will be and the breakdown of your payments. You can also see a graph and a pie chart of your loan’s amortization. www.calculator.io/amortization-calculator/

Free WordPress Plugin: Based on many famous equations, this free ideal weight calculator determines an optimal healthy body weight based on age, gender, and height. www.calculator.io/ideal-weight-calculator/

Free WordPress Plugin: This online calculator performs basic mathematical operations like addition, subtraction, division, and multiplication. You can use the calculator to find percentages and taxes. www.calculator.io/basic-calculator/

Free WordPress Plugin: Percentage increase calculator to find an increase from one number to another, calculate growth rate and calculate price increase in percentages. www.calculator.io/percentage-increase-calculator/

Free WordPress Plugin: This conception calculator calculates your conception date based on the date of your last period, your ultrasound date, or your due date. www.calculator.io/conception-date-calculator/

Free WordPress Plugin: Square footage calculator finds the surface area (square footage) of various shapes and calculates associated construction costs. It can be used as a room area calculator. www.calculator.io/square-footage-calculator/

Free WordPress Plugin: Adding fractions calculator to add and subtract proper and improper fractions. The calculator performs operations with up to nine given fractions. www.calculator.io/adding-fractions-calculator/

Free WordPress Plugin: This online hours calculator is an easy way to count hours and minutes at the touch of a button. www.calculator.io/hours-and-minutes-calculator/