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The other site the same publisher runs

The publisher also runs smart-toolkit.com. The two sites cover different ground.

smart-toolkit.com — calculators tied to Korean law and rates: year-end tax settlement, national insurance, severance pay, inheritance and gift tax, housing subscription scoring, tiered electricity billing. They only make sense under Korean regulation, so that site is Korean-only.
This site (omnitoolkit.net) — calculations that are not bound to one country, plus US conventions where a choice must be made: US clinical formulas for ideal body weight, US-listed stocks only, US customary volumes with the imperial ones listed separately. The interface is in 10 languages.

Where a tool exists on both, the text and the sources are written separately — one cites Korean regulation, the other international standards and US practice.

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OmniTools Global Suite

An all-in-one web utility platform with 43+ fast, secure, client-side productivity tools.

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The interface and tool names are available in 10 languages (English, Korean, Spanish, Japanese, German, French, Chinese, Portuguese, Hindi and Arabic), alongside the major world currencies. The per-tool guides and sources are currently written in Korean and English only.

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