What is a gram of gold worth today in Guatemala? Using the latest international price read by our collector, a gram of 24-karat gold is Q982.62, 18k is Q736.97, 14k is Q573.20 and 10k is Q409.43. This is a calculation using the international gold price in dollars, purity and the Banco de Guatemala reference exchange rate. It is not a gold buyer’s purchase offer.
Quick summary: International price: $3,999.40 per troy ounce (gold-api.com). Banguat exchange rate: Q7.6419 (2026-10-23). A troy ounce of fine gold: Q30,563.01. Formula: dollars per ounce ÷ 31.1034768 g × (karats ÷ 24) × exchange rate.
Gold price per gram, by karat
| Karat | Purity (karat ÷ 24) | Quetzales per gram | US dollars per gram |
|---|---|---|---|
| 24k | 100.0 % | Q982.62 | $128.58 |
| 22k | 91.7 % | Q900.74 | $117.87 |
| 18k | 75.0 % | Q736.97 | $96.44 |
| 14k | 58.3 % | Q573.20 | $75.01 |
| 10k | 41.7 % | Q409.43 | $53.58 |
International (spot) gold price: $3,999.40 per troy ounce, from gold-api.com (timestamp 2026-10-23T18:09:44Z, UTC). Banco de Guatemala reference exchange rate: Q7.6419 per US dollar (2026-10-23). Calculated when the site is built; the collector runs once a day (2026-10-23T12:09:55-06:00).
How it is calculated
- International (spot) gold price in dollars per troy ounce, from the gold-api.com API. Its terms permit commercial use: section 9 states, “Commercial use of the API is always permitted, including use in web applications, mobile apps, and third-party websites that you operate or develop for clients.” The same terms say the service does not guarantee the accuracy of its data.
- Troy ounces to grams: US NIST Handbook 44 (2026 edition, Appendix C) gives 1 troy ounce = 31.103 476 8 grams.
- Dollars to quetzales: the Banco de Guatemala reference exchange rate, also shown on our exchange-rate page.
Formula example: a gram of 14k = $3,999.40 ÷ 31.1034768 × (14 ÷ 24) × 7.6419 = Q573.20.
What this price is not
- It is not a gold buyer’s or jeweler’s purchase price. This page does not quote what a buyer in Guatemala will pay.
- It is not an official Guatemalan gold price. Banguat publishes the exchange rate; this page uses an international gold price as an input to its calculation.
Related
- Today’s exchange rate · Exchange-rate history
- Dollars-to-quetzales calculator
- Market prices in Guatemala (Spanish)
Sources
- International price: gold-api.com, endpoint
https://api.gold-api.com/price/XAU; terms of service, effective September 10, 2026. - Reference exchange rate: Banco de Guatemala.
- NIST, Handbook 44 (2026), Appendix C, General Tables of Units of Measurement.
Frequently Asked Questions
How is the gold price per gram in quetzales calculated?
The calculation takes the international gold price in dollars per troy ounce, divides it by 31.1034768 (the grams in a troy ounce according to the US NIST), then multiplies by the purity used in the calculation (karats divided by 24) and Banco de Guatemala’s reference exchange rate. This page uses the price from gold-api.com.
How much will a gold buyer pay me?
This page does not quote a purchase offer from a Guatemalan gold buyer or jeweler. It calculates the value of the fine gold in a piece at the international price; it is not a buyer’s offer.
How often is it updated?
The collector is scheduled to run once a day. Check the international price’s timestamp and the Banguat exchange-rate date beneath the table for the inputs used in the calculation.
What is a troy ounce?
It is the unit used to quote gold. According to NIST Handbook 44 (2026), a troy ounce equals 31.103 476 8 grams.
