利息シミュレーター — instant results. No login. All calculations run in your browser.
Example: 100万円 × 0.5% × 3年 = 101.5万円
Open the 定期預金計算機
This calculator is built into the Tickeroot app. Click to open it — it will automatically switch to 日本 (🇯🇵) mode with the correct currency and tax rates.