Frequency Converter

Convert frequency between hertz, kilohertz, megahertz, gigahertz and revolutions per minute.

  • Runs locally in your browser
  • No upload required

Try it

Converted value
1000 hz
Factor (from / to)
1000
Formula
1 khz = 1000 hz

Supported formats

Input
number, select
Output
number, text

Privacy

Runs entirely in your browser. Your input is never uploaded, stored, or sent to a third party.

Processing
In your browser
Privacy level
Browser only

1 kilohertz (kHz) equals 1000 hertz (Hz).

How it works

  • Expressed the source unit in hertz using its exact factor.
  • Divided by the target unit expressed in hertz.
  • Rounded the result to 12 significant digits.
textSelect to copy
1 khz = 1000 hz
  • Both units measure frequency, so the conversion is a single exact multiplication.

Methodology

  1. Express every unit as an exact factor to the hertz base.
  2. Multiply the input by the source factor and divide by the target factor.
  3. Round the result to 12 significant digits so a convert-then-convert-back operation stays within floating-point tolerance.

Usage

  1. Enter the value to convert.
  2. Choose the source and target units.
  3. Read the converted value and the conversion formula.

Examples

These are examples, not current values: they use fixed inputs, while the interactive tool computes live results in your browser.

Kilohertz to hertz

jsonSelect to copy
{
  "value": 1,
  "from": "khz",
  "to": "hz"
}

RPM to hertz

jsonSelect to copy
{
  "value": 60,
  "from": "rpm",
  "to": "hz"
}

Gigahertz to megahertz

jsonSelect to copy
{
  "value": 1,
  "from": "ghz",
  "to": "mhz"
}

Limitations

Exact frequency factors

Every frequency unit is defined as an exact multiple of the hertz, so the conversion is a single multiplication with no approximation beyond floating-point representation.

Frequently asked questions

Which frequency units does this converter support?
It supports every unit listed in the From and To menus, each expressed as an exact factor to the hertz.
Why does the result show a formula?
The formula shows the exact multiplication so you can verify the frequency conversion by hand.

Sources

  1. The International System of Units (SI Brochure), 9th edition — BIPM
  2. NIST Special Publication 811: Guide for the Use of the International System of Units (SI) — NIST