Mathematics
Natural logarithm
Natural logarithm: use positive number. Review the formula, worked example and calculation steps.
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Browse calculators 241–288 of 522. Open a calculator for its inputs, formula, worked example and solution steps.
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Mathematics
Antilogarithm
Antilogarithm: use exponent, base. Review the formula, worked example and calculation steps.
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Exponential growth & decay
Exponential growth & decay: use initial value, rate per time unit, elapsed time. Review the formula, worked example and calculation steps.
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Complex numbers
Complex numbers: use first real part, first imaginary part, second real part. Review the formula, worked example and calculation steps.
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Discrete convolution
Discrete convolution: use first sequence, second sequence. Review the formula, worked example and calculation steps.
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Number base converter
Number base converter: use whole number, source base, target base. Review the formula, worked example and calculation steps.
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Decimal to fraction
Decimal to fraction: use decimal value. Review the formula, worked example and calculation steps.
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Simplify fraction
Simplify fraction: use numerator, denominator. Review the formula, worked example and calculation steps.
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Degrees ↔ degrees minutes seconds
Degrees ↔ degrees minutes seconds: use direction, degrees, minutes (to decimal only). Review the formula, worked example and calculation steps.
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Final grade calculator
Final grade calculator: use current grade, desired overall grade, final exam weight. Review the formula, worked example and calculation steps.
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Letter grade ↔ GPA
Letter grade ↔ GPA: use direction, letter grade, gpa (reverse direction). Review the formula, worked example and calculation steps.
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GST & VAT calculator
GST & VAT calculator: use amount, supplied tax rate, tax treatment. Review the formula, worked example and calculation steps.
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Weighted course grades
Weighted course grades: use scores as percentages, corresponding relative weights. Review the formula, worked example and calculation steps.
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Percentage · all operations
Find a percent of a number, what percent one value is of another, or the original total from a part and percentage.
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Fraction, decimal & percent
Fraction, decimal & percent: use conversion, numerator / percentage, denominator (fraction input). Review the formula, worked example and calculation steps.
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Ratio simplifier & proportion
Ratio simplifier & proportion: use operation, first ratio · first term, first ratio · second term. Review the formula, worked example and calculation steps.
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Compound interest · compounding periods
Compound interest · compounding periods: use principal, nominal annual interest, years. Review the formula, worked example and calculation steps.
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Effective annual interest rate
Effective annual interest rate: use nominal annual interest, compounding periods per year. Review the formula, worked example and calculation steps.
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Temperature · Celsius Fahrenheit Kelvin Rankine
Temperature · Celsius Fahrenheit Kelvin Rankine: use temperature, from, to. Review the formula, worked example and calculation steps.
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Custom unit conversion
Custom unit conversion: use input value, multiplication factor, offset after multiplication. Review the formula, worked example and calculation steps.
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Fibonacci numbers
Fibonacci numbers: use index n (f₀ = 0, f₁ = 1). Review the formula, worked example and calculation steps.
Open calculatorEngineering
Amps to watts
Amps to watts: use current, voltage, power factor. Review the formula, worked example and calculation steps.
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Watts to amps
Watts to amps: use real power, voltage, power factor. Review the formula, worked example and calculation steps.
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Volts to watts
Volts to watts: use voltage, current, power factor. Review the formula, worked example and calculation steps.
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Watts to volts
Watts to volts: use real power, current, power factor. Review the formula, worked example and calculation steps.
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Amps to kW
Amps to kW: use current, voltage, power factor. Review the formula, worked example and calculation steps.
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kW to amps
kW to amps: use real power, voltage, power factor. Review the formula, worked example and calculation steps.
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Volts to kW
Volts to kW: use voltage, current, power factor. Review the formula, worked example and calculation steps.
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kW to volts
kW to volts: use real power, current, power factor. Review the formula, worked example and calculation steps.
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Amps to VA
Amps to VA: use current, voltage, circuit. Review the formula, worked example and calculation steps.
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VA to amps
VA to amps: use apparent power, voltage, circuit. Review the formula, worked example and calculation steps.
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VA to watts
VA to watts: use apparent power, power factor. Review the formula, worked example and calculation steps.
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Watts to VA
Watts to VA: use real power, power factor. Review the formula, worked example and calculation steps.
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VA to kW
VA to kW: use apparent power, power factor. Review the formula, worked example and calculation steps.
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kW to VA
kW to VA: use real power, power factor. Review the formula, worked example and calculation steps.
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Amps to KVA
Amps to KVA: use current, voltage, circuit. Review the formula, worked example and calculation steps.
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KVA to amps
KVA to amps: use apparent power, voltage, circuit. Review the formula, worked example and calculation steps.
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KVA to watts
KVA to watts: use apparent power, power factor. Review the formula, worked example and calculation steps.
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Watts to KVA
Watts to KVA: use real power, power factor. Review the formula, worked example and calculation steps.
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KVA to kW
KVA to kW: use apparent power, power factor. Review the formula, worked example and calculation steps.
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kW to KVA
kW to KVA: use real power, power factor. Review the formula, worked example and calculation steps.
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Watts to Joules
Watts to Joules: use watts, duration. Review the formula, worked example and calculation steps.
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Watts to kJ
Watts to kJ: use watts, duration. Review the formula, worked example and calculation steps.
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Watts to Wh
Watts to Wh: use watts, duration. Review the formula, worked example and calculation steps.
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Watts to kWh
Watts to kWh: use watts, duration. Review the formula, worked example and calculation steps.
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kW to Joules
kW to Joules: use kw, duration. Review the formula, worked example and calculation steps.
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kW to kJ
kW to kJ: use kw, duration. Review the formula, worked example and calculation steps.
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kW to Wh
kW to Wh: use kw, duration. Review the formula, worked example and calculation steps.
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