Mortgage CalculatorLoan CalculatorAuto Loan CalculatorCompound Interest CalculatorSimple Interest CalculatorSavings CalculatorRetirement CalculatorROI CalculatorCAGR CalculatorPresent Value CalculatorFuture Value CalculatorAnnuity CalculatorAPR CalculatorCredit Card Payoff CalculatorDebt-to-Income Ratio CalculatorIncome Tax Calculator (US Federal)Salary to Hourly Wage CalculatorTip CalculatorDiscount CalculatorSales Tax CalculatorProfit Margin CalculatorMarkup CalculatorBreak-Even CalculatorInflation CalculatorSavings Goal CalculatorExchange Rate CalculatorPercentage CalculatorPercentage Change CalculatorFraction CalculatorAverage CalculatorMean, Median & Mode CalculatorStandard Deviation CalculatorRatio CalculatorProportion CalculatorExponent CalculatorLogarithm CalculatorSquare Root CalculatorFactorial CalculatorGCD & LCM CalculatorPythagorean Theorem CalculatorQuadratic Equation CalculatorSlope CalculatorArea CalculatorPerimeter CalculatorVolume CalculatorCircle CalculatorTriangle CalculatorRandom Number Range AnalyzerScientific Notation CalculatorRounding CalculatorBMI CalculatorBMR CalculatorTDEE CalculatorCalorie CalculatorBody Fat CalculatorIdeal Weight CalculatorMacro CalculatorProtein CalculatorWater Intake CalculatorOvulation CalculatorPregnancy Due Date CalculatorConception CalculatorPeriod CalculatorPace CalculatorHeart Rate Zones CalculatorVO2 Max CalculatorOne Rep Max CalculatorSleep CalculatorBlood Alcohol Calculator (BAC)Lean Body Mass CalculatorCalories Burned CalculatorPregnancy Weight Gain CalculatorAge CalculatorDate Duration CalculatorDays Between Dates CalculatorAdd Days to Date CalculatorBusiness Days CalculatorWork Hours CalculatorTime Duration CalculatorTime Zone ConverterWeek Number CalculatorDay of Week CalculatorLeap Year CalculatorUnix Timestamp ConverterTime Add / Subtract CalculatorDays Until CalculatorZodiac Sign CalculatorChinese Zodiac CalculatorRetirement Date CalculatorQuarter CalculatorLength ConverterWeight ConverterTemperature ConverterVolume ConverterArea ConverterSpeed ConverterTime ConverterData Storage ConverterPressure ConverterEnergy ConverterPower ConverterForce ConverterTorque ConverterAngle ConverterFuel Consumption ConverterCooking ConverterShoe Size ConverterDensity ConverterFrequency ConverterHeight ConverterFlow Rate ConverterNumber to Words ConverterRoman Numeral ConverterBeaufort Scale ConverterScreen Size CalculatorDecibel ConverterConcrete CalculatorTile CalculatorPaint CalculatorFlooring CalculatorDrywall CalculatorBrick CalculatorGravel CalculatorMulch CalculatorDeck CalculatorFence CalculatorRoof Pitch CalculatorRoofing Material CalculatorStairs CalculatorSquare Footage CalculatorCubic Yard CalculatorBoard Feet CalculatorInsulation CalculatorWallpaper CalculatorOhm's Law CalculatorParallel Resistor CalculatorVelocity CalculatorAcceleration CalculatorKinetic Energy CalculatorPotential Energy CalculatorForce CalculatorMomentum CalculatorFriction CalculatorProjectile Range CalculatorPendulum CalculatorWavelength CalculatorpH CalculatorMolarity CalculatorDilution CalculatorIdeal Gas CalculatorBoyle's Law CalculatorHalf-Life CalculatorGPA CalculatorGrade CalculatorFinal Grade CalculatorWeighted Grade CalculatorDog Age CalculatorCat Age CalculatorElectricity Cost CalculatorFuel Cost CalculatorSplit Bill CalculatorUnit Price CalculatorReading Time CalculatorSubnet CalculatorDownload Time CalculatorProbability CalculatorRent Affordability CalculatorSolar Payback CalculatorHousehold Budget CalculatorEmergency Fund Calculator

Frequency Converter

Convert Hz, kHz, MHz, GHz and RPM, with the period in milliseconds.

By CalcHub Editorial · Last reviewed

Quick answer

  • Formula: Result = Value × (factor of from-unit in Hz) ÷ (factor of to-unit in Hz); Period (ms) = 1000 ÷ frequency in Hz
  • Worked example — Converted frequency: 3,600.000000 (full example below).

Frequency Converter

Worked example result
Converted frequency3,600.000000
Period of one cycle16.6667 ms
Summary60 Hz = 3600 RPM

60 Hz is 3600 RPM — and each cycle lasts 16.67 ms, which is why 60 Hz lighting flicker is hard to see.

Diagram: how the Frequency Converter works — you enter Frequency, From, To; it applies the formula Result = Value × (factor of from-unit in Hz) ÷ (factor of to-unit i…; and the worked example gives Converted frequency: 3,600.000000.
How the Frequency Converter works — the inputs, the formula, and a worked example (Converted frequency: 3,600.000000).

Convert frequency through the hertz (cycles per second): kilo-, mega- and gigahertz step by 1000, while RPM and cycles per minute step by 60 — 60 Hz is 3600 RPM. The period output shows how long one cycle takes: period = 1 ÷ frequency, so 50 Hz mains has a 20 ms period.

Everyday anchors: mains electricity is 50 or 60 Hz, concert A is 440 Hz, FM radio sits around 100 MHz, and Wi-Fi runs at 2.4 and 5 GHz.

The formula

Result = Value × (factor of from-unit in Hz) ÷ (factor of to-unit in Hz); Period (ms) = 1000 ÷ frequency in Hz

Worked example

60 Hz is 3600 RPM — and each cycle lasts 16.67 ms, which is why 60 Hz lighting flicker is hard to see.

Worked example for the Frequency Converter: with Frequency 60, From Hertz (Hz), To Revolutions per minute (RPM), the result is Converted frequency: 3,600.000000; Period of one cycle: 16.6667 ms.
The worked example, with the example values entered and the results they give.

The example is pre-loaded in the result panel — press Calculate with your own numbers to replace it.

Frequently asked questions

How do I convert RPM to Hz?

Divide by 60: a motor spinning at 1800 RPM rotates at 30 Hz. To go from Hz to RPM, multiply by 60.

What is the period of 440 Hz?

1 ÷ 440 ≈ 2.27 ms. The period output shows this for any frequency you convert.

Are cycles per minute and RPM the same?

Numerically yes — both count events per minute. RPM is used for rotating machinery; cycles per minute is the generic term.

Category: Unit Conversions calculators

Sources & methodology

This calculator applies the formula shown on this page exactly as written, using the standard definitions for its inputs. Results are computed from the values you enter — no data is stored — and are rounded only for display.

Content last reviewed by CalcHub Editorial.

Embed this calculator on your site

Free to use with attribution — paste the snippet below and the calculator appears on your page, with a link back to CalcHub.

<iframe src="https://calc-hub-63e.pages.dev/embed/frequency-converter" width="100%" height="640" style="border:1px solid #d9e2ea;border-radius:12px" loading="lazy" title="Frequency Converter — CalcHub"></iframe>

Open the embed version →

Time Converter — how-it-works diagram

Time Converter

Convert seconds, minutes, hours, days, weeks and Julian years.

Unit Conversions →
Angle Converter — how-it-works diagram

Angle Converter

Convert degrees, radians, gradians, turns, arcminutes and arcseconds.

Unit Conversions →
Wavelength Calculator — how-it-works diagram

Wavelength Calculator

Wavelength from frequency (or the reverse) for sound, light or any wave speed.

Science →
Speed Converter — how-it-works diagram

Speed Converter

Convert m/s, km/h, mph, knots, ft/s and Mach number.

Unit Conversions →