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Finance Tools — Free Online Utilities

Money and finance tools — loan and amortization calculators, budgets, and currency helpers — to plan payments, compare options, and understand the numbers behind a decision.

34 ツール 無料 サインアップ不要
50/30/20 Budget Calculator

Calculate and track your budget using the 50/30/20 rule.

Budget vs. Actual Tracker

Compare planned budget against actual spending with visual charts

Credit Card Validator

Validate card numbers with Luhn check and detect card network

Currency Exchange Rates

Live currency exchange rates and converter

Inflation Calculator

Calculate purchasing power and inflation impact using historical CPI data from 1913–2025.

Investment Calculator

Project investment growth with compound interest and charts

Investment Returns Calculator

Project investment growth with charts, scenarios, and inflation-adjusted returns.

Loan Affordability Calculator

Find the maximum loan you can afford based on your income, debts, and the 28/36 rule.

Loan Comparison Calculator

Compare up to 3 loans side by side with visual charts

Loan Eligibility Checker

Estimate loan eligibility based on income, debts, credit score, and loan type.

Loan Payoff Calculator

Calculate how to pay off debt faster with avalanche vs snowball strategies.

Loan vs. Lease Calculator

Compare the total cost of buying (loan) versus leasing a car or equipment.

Mortgage Amortization Table

Generate a full mortgage amortization schedule with charts and summary

Mortgage Calculator

Calculate your monthly mortgage payment with taxes, insurance, PMI, and amortization.

Mortgage Comparison Tool

Compare 2–3 mortgage offers side-by-side including APR and break-even analysis.

Mortgage Overpayment Calculator

See how much time and interest you save by making extra mortgage payments.

Net Worth Calculator

Track assets, liabilities, and visualize your personal net worth

Professional Invoice Generator

Create polished invoices with logo, multiple tax rates, discounts, and payment details.

QR コード生成

明細項目、税金計算、PDFへの印刷サポートを備えたプロフェッショナルな請求書を作成します。

Retirement Calculator

Project your retirement savings with compound growth, inflation adjustment, and a 4% rule income estimate.

Savings Goal Calculator

Calculate how long it takes to reach your savings goal with compound interest.

Signature Maker

Generate stylised text signatures or draw freehand and download as PNG.

Stock Screener (Demo)

Filter and sort a demo dataset of 30 well-known stocks.

Tax Calculator

Estimate your US federal income tax using 2024 tax brackets.

US Tax Bracket Visualizer

Visualize how your income is taxed across 2024 US federal brackets with a clear chart.

Unit Price Comparator

Compare cost-per-unit across products to find the best shopping value.

VAT Calculator

Add or remove VAT / sales tax from any amount instantly.

パーセント計算機

出席者数、給与、時間に基づいて、ライブコストタイマーで会議の実際のコストを計算します。

ローン償還テーブル

月々の返済額・総利息・完全な返済スケジュールを計算。

予算プランナー

月次収入と支出を追跡し、カテゴリー別の支出を視覚化して、予算をCSVにエクスポートします。

単位変換

APIなしで30の主要な世界通貨を変換し、ミニレートテーブルも表示します。

履歴書ビルダー

ライブプレビューとPDF印刷機能付きの清潔な1ページ履歴書を作成できます。アカウント不要。

数字から通貨表記への変換

小切手書きや法的文書のために、任意の数字を文字で書かれた通貨表現に変換します。

経費トラッカー

カテゴリ別に個人の支出を追跡し、月次予算を設定して、概要とトレンドで支出を可視化できます。

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