Hertz to Megahertz Converter
Common Conversions
| Hz | MHz |
|---|---|
| 100 | 0.0001 |
| 500 | 0.0005 |
| 1000 | 0.001 |
| 5000 | 0.005 |
| 10000 | 0.01 |
| 100000 | 0.1 |
| 500000 | 0.5 |
| 1000000 | 1 |
| 10000000 | 10 |
| 1000000000 | 1000 |
Why this conversion matters in chemistry
NMR spectrometers are identified by their proton Larmor frequency in MHz — a 400 MHz instrument operates in a 9.4 T magnetic field, a 600 MHz one at 14.1 T. The spectrum's actual frequency axis runs in Hz on the raw data, but chemical shifts get reported as a field-independent ppm scale. The conversion is what makes that scale work: a 1000 Hz peak offset on a 400 MHz instrument is 2.5 ppm (1000 Hz ÷ 400 MHz, expressed in parts per million), which is the value a synthetic chemist actually reads off the spectrum. Dividing by 10⁶ is how absolute Hz frequency maps onto the field-independent ppm framework.
Formula
Worked Examples
A 400 MHz NMR spectrometer's operating frequency for protons — the field-strength label that defines the instrument.
One million hertz — the conversion anchor and a useful per-unit reference.
About the spectral width covering aliphatic and olefinic protons on a 400 MHz instrument — 6 ppm × 400 Hz/ppm; a full ¹H window that includes aromatic and exchangeable signals runs closer to 4000 Hz.