The Small Seal script is not yet in Unicode. The script has a tentative allocation at U+32400 to U+3520F in the Roadmap to the TIP for the Unicode Standard. Several proposals for its inclusion have been submitted to the Unicode Technical Committee and WG2.
Many of the early Korean and Japanese, medals and badges had inscriptions in Small Seal Script. To those who want or need to translate Seal Script to Standard/Traditional Script, I offer the following table. Between the two red lines, the upper line is Traditional Script, with the next line being the equivalent Seal Script. Characters are laid out by the number of strokes that make up a standard/traditional character. In general, the least complicated words are at the top of this page and progressively get more complex as you go down. Because each page contains 5-1/2 groups, you may find your seal character at the top of the page and its equivalent traditional character at the bottom of the previous page.
