17 tools

Finance & Business tools

Money-related calculators: loans, compound interest, tax, bill splitting. Not financial or tax advice.

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17 results

Compare Japan’s tax deductions, benefits and member-loan interest.

Japan’s 2026 rules, tax savings and official sources.

VIX and key market gauges with charts.

Split a bill equally or by weight, with tip and rounding.

Convert cost, price, gross margin %, and markup %.

Original ↔ discount % ↔ final price; optional multi-discount stack.

JP consumption tax.

Hourly to yearly pay.

Break-even units and revenue from fixed & variable costs.

Return on investment % from gain and cost.

Monthly payment, total paid, and interest for an amortizing loan.

Equal payment / equal principal mortgage with optional extra payments.

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Project your savings, set goals, and compare NISA and iDeCo.

Estimate OT, night, and holiday premiums.

Rough JP take-home from annual gross (social + tax).

Convert amounts with ECB / Frankfurter FX rates.

Convert crypto amounts using CoinGecko prices.