Answer · Updated October 11, 2026
What's the Best Frequency for Detecting Gold?
Short answer
High frequency — generally 18 kHz and up, with 45-71 kHz for the smallest targets. Gold is a weak, low-conductivity target, and higher frequencies are far more sensitive to small, poorly conductive metal. The smaller the gold you're chasing, the higher you want the frequency.
What's the best frequency for detecting gold? High. Gold's low conductivity means it needs a detector tuned to catch weak signals, and that's exactly what higher frequencies are good at — see how a metal detector works for why frequency affects this.
There isn't one magic number, though — the right frequency depends on what size gold you're actually after.
01Frequency by target size
This is the practical breakdown prospecting detectorists actually use when choosing a machine or a frequency setting.
| Target | Frequency range | Why |
|---|---|---|
| Fine gold chains, flakes | 45-71 kHz | Maximum sensitivity to tiny, weak targets |
| Small nuggets, jewelry | 18-45 kHz | Strong balance of sensitivity and usable depth |
| Larger nuggets | 5-18 kHz | Size compensates for lower sensitivity; depth matters more here |
| Multi-frequency | Several at once | Covers the full range without committing to one trade-off |
02Why higher frequency means more sensitivity to gold
A detector's coil reacts more strongly to a target the faster its field alternates, which matters most for weak, low-conductivity metal. Gold is exactly that kind of target, so a higher frequency pulls more signal out of a small nugget than a lower one would from the same piece of gold.
The trade-off is depth on larger, more conductive targets — which is why dedicated prospecting detectors run so high, while general-purpose machines settle in the middle to stay useful for coins and relics too.
03Why multi-frequency sidesteps the choice
A multi-frequency detector like the Minelab Equinox 800 transmits several frequencies simultaneously and compares the results, rather than locking into one trade-off. That's why it can stay genuinely useful on both small gold and deeper, larger targets in the same swing — see our single-frequency vs multi-frequency comparison for the full picture.
A dedicated single-frequency gold machine running 45+ kHz will still out-sensitive a multi-frequency detector on the smallest flakes — frequency range, not fancy electronics, is what buys that edge.
Related questions
- Is higher frequency always better for gold?
- For small gold, yes. For larger nuggets, a somewhat lower frequency can actually perform better by trading some small-target sensitivity for extra depth, since size already compensates for gold's weak conductivity.
- What frequency do dedicated gold detectors use?
- Most dedicated prospecting detectors run 45 kHz or higher, with some specialist models reaching into the high 60s or low 70s kHz specifically to catch sub-gram flakes other machines miss entirely.
- Can a low-frequency detector find gold at all?
- Yes, especially larger nuggets and gold jewelry, which produce enough signal to register even at lower frequencies. It's the smallest flakes that genuinely need the higher end of the range.
- Is multi-frequency as good as a dedicated high-frequency gold detector?
- Close, and more versatile for general use, but a dedicated single-frequency gold machine running very high kHz usually still wins on the smallest, faintest targets specifically.
Keep reading
Detectors worth a look
- Minelab Equinox 800 review
One detector to cover coins, jewelry, beach, and the occasional gold hunt — without compromising on any of them.
- Garrett AT Pro review
Relic hunting, freshwater, and anyone who wants to learn to read targets by audio rather than by number.
More answers
- How Does a Metal Detector Work?
A metal detector works by sending a pulsing magnetic field into the ground from its coil. Metal objects react to that field by generating their own weak field, and the detector hears that echo and turns it into a tone and a number on screen.
- Can a Metal Detector Detect Gold?
Yes. Any metal detector will find gold — gold is metal, and gold rings, chains, and coins show up on even entry-level machines. Finding small gold nuggets in mineralized goldfields is the hard version, and that needs a high-frequency or pulse-induction detector.
- How Much Does a Metal Detector Cost?
A metal detector costs about $100 for a basic starter, $200–400 for a genuinely capable entry-level machine, $500–800 for mid-range multi-frequency, and $1,000–1,500 for a flagship. Most people should spend $200–400.
- Will a Vape Set Off a Metal Detector?
Yes, a vape will usually set off a walk-through metal detector. Even a mostly plastic disposable contains a metal heating coil, a lithium battery with a metal casing, and metal contacts — collectively more than enough metal to trigger an alarm.
Buying guides
- Best Pinpointers for Metal Detecting
The best pinpointer for metal detecting is the Garrett Pro-Pointer AT — waterproof, adjustable, and hard to lose. Probes compared for dirt, water, and gold.
- Best Pinpointer Metal Detector for Gold
The best pinpointer for gold is the Falcon MD20 — a very high frequency probe that finds flakes in quartz standard pinpointers miss. Gold probes compared.
- Best Metal Detector for Kids
The best metal detector for kids is the Nokta Mini Hoard — light enough for a small child and capable enough to find real coins. Picks by age, from 5 to teenager.