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Free Swedish classroom material for unit conversion in mathematics – printable unit tables and an interactive prefix ladder. No ads, no login, no profiling or tracking of students, no cookie banner on these school pages.

The material targets Swedish classrooms; these English pages describe it and the tools below render in English too.

• 🍎For teachers

  Using the material in class: share your own tables, practice sheets with answer keys, privacy, license (CC BY 4.0).

• 🪜Prefix ladder

  Interactive prefix ladder through the entire SI scale: see how the decimal point moves – from yotta to yocto.

• 📏Unit tables

  Eleven printable unit tables – one for every conversion category.

The material is free to print, copy and share (CC BY 4.0 – see For teachers).

Last reviewed: August 2026.