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Online abacus tool

A free virtual abacus (soroban) that works like a real one: tap a bead to move it, show any number, or play the number game. Each lower bead is 1 and each upper bead is 5 when it touches the bar.

New to the abacus?

Upper bead = 5 Lower bead = 1 Only beads touching the bar count

🎯 Number game

Set the number on the abacus above, then press Check. Get 5 in a row to level up the numbers.

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Learn abacus step by step

10 free levels — from showing numbers to mental sums — with practice, tests, worksheets and an AI tutor.

Start Level 0 All abacus levels →