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Hertz to Exahertz Converter

Enter the frequency in hertz below to convert it to exahertz.

Convert Hertz to Exahertz

Enter a value in hertz (Hz) to convert to exahertz (EHz).

Result
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5e-18exahertz
5 Hz = 5e-18 EHz
Result updates automatically
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Suggested Conversions
Reference:NIST OWM (SI Units — Time & Frequency)
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Hertz to Exahertz Conversion Table

Table showing various hertz measurements converted to exahertz. Click any preset value or arrow to load it into the converter.

Hertz (Hz)Exahertz (EHz)
1 Hz1e-18 EHz
10 Hz1e-17 EHz
100 Hz1e-16 EHz
1,000 Hz1e-15 EHz
10,000 Hz1e-14 EHz
100,000 Hz1e-13 EHz
1,000,000 Hz1e-12 EHz
5,000,000 Hz5e-12 EHz
10,000,000 Hz1e-11 EHz
25,400,000 Hz2.54e-11 EHz

How to Convert Hertz to Exahertz

To convert hertz to exahertz, multiply the frequency by the following conversion ratio: 1e-18 exahertz/hertz.

Since one hertz is equal to 1e-18 exahertz, you can use this simple formula to convert:

exahertz = hertz × 1e-18

The frequency in exahertz is equal to the frequency in hertz multiplied by 1e-18.

For example, here's how to convert 5 hertz to exahertz using the formula above.

exahertz = (5 Hz × 1e-18) = 5e-18 EHz

How Many Exahertz Are in a Hertz?

There are 1e-18 exahertz in a hertz, which is why we use this value in the formula above.

1 Hz = 1e-18 EHz|1 EHz = 1e+18 Hz

Our hertz to exahertz calculator automatically converts your frequency measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

Hertz and exahertz are both units used to measure frequency. Keep reading to learn more about each unit.

What Is a Hertz?

SI unit of frequency equal to 1 cycle per second. It serves as a primary reference unit for measuring frequency across scientific and practical applications. [1]

The hertz is classified as an International System of Units (SI) unit of frequency. Hertz can be abbreviated as Hz; for example, 1 hertz can be written as 1 Hz.

As the primary coherent reference unit for frequency in this category, all other frequency units are mathematically anchored to the hertz (Hz).

In practice, hertz (Hz) are widely used across standard frequency applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.

What Is an Exahertz?

An exahertz is a unit of frequency equal to 1e+18 hertz (Hz), the base unit for frequency. Equal to 10¹⁸ Hz. [2]

The exahertz is classified as an International System of Units (SI) unit of frequency. Exahertz can be abbreviated as EHz; for example, 1 exahertz can be written as 1 EHz.

In the metric system, "exa" is the standard SI prefix for quintillions, or 10¹⁸. This makes the exahertz (EHz) a convenient decimal multiple of the hertz (Hz).

In practice, exahertz (EHz) are widely used across large-scale industrial, bulk, and macro-level frequency specifications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.

When converting frequency between hertz (Hz) and exahertz (EHz), keep full floating-point precision (1 Hz = 1e-18 EHz; 1 EHz = 1e+18 Hz) during intermediate calculations and round only the final exahertz figure to match your instrument tolerance.

More Hertz & Exahertz Conversions

Need to calculate in the opposite direction? Use our exahertz to hertz calculator to switch your starting unit immediately. You can also explore related tools such as converting exahertz to hertz, converting hertz to kilohertz, or converting hertz to megahertz.

Frequently Asked Questions

There are 1.000000e-18 exahertz (EHz) in 1 hertz (Hz). Conversely, 1 exahertz (EHz) is equal to 1.000000e+18 hertz (Hz).

References

NIST · BIPM · ISO
  1. [1]
    NIST OWM (SI Units — Time & Frequency)·Frequency Metrology Standard — Hertz (Hz) to Exahertz (EHz)
    NIST OWM Standard
  2. [2]
    BIPM (SI Base Unit: Second (s) & Hertz (Hz))·Unit Specifications: Hertz (Hz) & Exahertz (EHz)
    BIPM Specification
  3. [3]
    NIST CUU (Derived SI Unit: Hertz (Hz))·Conversion Factors & Mathematical Basis (Hz to EHz)
    NIST CUU Reference
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