USD to THB on December 18, 2025

1 USD = 31.455 THB

1 THB = 0.031792 USD

On Thursday, December 18, 2025 the ECB reference rate was 1 USD = 31.455 THB, and 1 THB = 0.031792 USD.

Against the previous business day (December 17, 2025, 31.515) the rate moved by -0.19%.

The December 2025 average was 31.610, with a low of 31.045 and a high of 32.055.

A year earlier, on December 18, 2024, 1 USD cost 34.235 THB (-8.12%).

December 2025: daily rates

Date	Rate	Change
December 1, 2025	31.930	-0.82%
December 2, 2025	32.015	+0.26%
December 3, 2025	31.890	-0.39%
December 4, 2025	32.055	+0.52%
December 5, 2025	31.855	-0.62%
December 8, 2025	31.850	-0.02%
December 9, 2025	31.855	+0.02%
December 10, 2025	31.845	-0.03%
December 11, 2025	31.745	-0.31%
December 12, 2025	31.540	-0.64%
December 15, 2025	31.475	-0.21%
December 16, 2025	31.480	+0.02%
December 17, 2025	31.515	+0.11%
December 18, 2025	31.455	-0.19%
December 19, 2025	31.460	+0.02%
December 22, 2025	31.150	-0.98%
December 23, 2025	31.110	-0.13%
December 24, 2025	31.045	-0.21%
December 29, 2025	31.440	+1.27%
December 30, 2025	31.415	-0.08%
December 31, 2025	31.675	+0.83%

Conversion at this date's rate

Amount	THB	Amount	USD
1 USD	31.45 THB	100 THB	3.18 USD
5 USD	157.27 THB	500 THB	15.90 USD
10 USD	314.55 THB	1,000 THB	31.79 USD
20 USD	629.10 THB	2,000 THB	63.58 USD
50 USD	1,572.75 THB	5,000 THB	158.96 USD
100 USD	3,145.49 THB	10,000 THB	317.92 USD
200 USD	6,290.98 THB	20,000 THB	635.83 USD
250 USD	7,863.73 THB	50,000 THB	1,589.58 USD

1 USD in other currencies on December 18, 2025

Pair	Rate
USD/EUR Euro	0.85332
USD/GBP British pound	0.74631
USD/JPY Japanese yen	155.77
USD/CHF Swiss franc	0.79495
USD/AUD Australian dollar	1.5133
USD/CAD Canadian dollar	1.3790
USD/NZD New Zealand dollar	1.7343
USD/CNY Chinese yuan	7.0413
USD/HKD Hong Kong dollar	7.7814
USD/SGD Singapore dollar	1.2910
USD/INR Indian rupee	90.262
USD/KRW South Korean won	1,477.24
USD/IDR Indonesian rupiah	16,717.35
USD/MYR Malaysian ringgit	4.0860
USD/PHP Philippine peso	58.607
USD/THB Thai baht	31.455
USD/ILS Israeli shekel	3.2173
USD/TRY Turkish lira	42.734
USD/ZAR South African rand	16.777
USD/BRL Brazilian real	5.5476
USD/MXN Mexican peso	18.002
USD/PLN Polish zloty	3.5884
USD/CZK Czech koruna	20.814
USD/HUF Hungarian forint	331.00
USD/RON Romanian leu	4.3440
USD/SEK Swedish krona	9.3024
USD/NOK Norwegian krone	10.201
USD/DKK Danish krone	6.3754
USD/ISK Icelandic krona	126.12

USD/THB 2025 · USD/THB · THB/USD

The ECB publishes euro reference rates around 16:00 CET on TARGET business days. Cross rates between two non-euro currencies are calculated from their euro rates. Reference rates serve for information; a bank or card issuer applies its own rate.

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