Science / Reference / Units of Measurement / Online Calculators /
Online calculators are used to perform either simple or complex mathematical operations. These can be accessed online without having to download. They quite often use either javascript or java code.
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Convertalot
Collection of free Java measurements converters, calculators, and unit translators.4
765,029
NA
2,390
127
166
MrCalculator
Features calculators for arithmetic operations, hexidecimal conversions, camera focus evaluations, finding monthly mortgage payments, color codes, and to make sundials.4
2,036,727
NA
719
145
4
Calculate for Free
Performs basic math operations, as well as square root and percentages. Includes memory save and recall.4
128,798
NA
1,400
742
34
Calculator City
Includes tools to solve equations like for velocity, density, financial, geometry, algebra, calculus, astronomy, chemistry, physics and webpage color coders. Also, has trivia fact pages, such as state demographics and presidents.3
91,710
NA
38,500,000
1,190
30
Calculator.com
Online calculators for a variety of conversions and calculations.7
48,110
NA
473,000,000
1,670
17
Hiox Calculator & Converter
Features calcutors for arithmetic functions, scientific computations, binary conversions, areas, finanical interest, prime numbers, recurring fractions, factoring, matrices, HEX color converter, date and day calculations, as well as for measuring bandwidth.5
30,320
NA
26,000
4,730
31
Percent Change Calculator
Measures the difference in value using percentages. Includes bar graphs with the answer.4
248,152
NA
13,700,000
7
307
CalcNexus
Provides online calculators for web-enabled mobile phones and PDAs, including financial, fitness and conversion calculators.4
1,252,385
NA
1,580
200
278
eCalc
Free online calculator that supports both a basic and advanced scientific mode. It includes support for the following features: complex numbers, unit conversion, base conversion, decimal to fraction, RPN and algebraic modes and equation solver.6
139,585
NA
143,000
466
76
Calculatoredge
Provides several online calculator tools for solving complex equations and formulas in the fields of mechanical, electrical and chemical engineering, physics, math, electronics, metallurgy and finance.3
410,619
NA
12,800
3,050
364
12
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