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債券利回り計算機

債券の直接利回りと最終利回りを見積もります。

はじめに

Bond Yield Calculator — Estimate current yield and yield to maturity for a bond. Enter Face value, Coupon rate (%), Current price, Years to maturity to get an instant, accurate result.

計算式

Current yield % = (annual coupon / price) × 100. Approximate yield to maturity % = [coupon + (face value − price)/years] / [(face value + price)/2] × 100.

ステップごとの説明

  1. Enter the Face value.
  2. Enter the Coupon rate (%).
  3. Enter the Current price.
  4. Enter the Years to maturity.
  5. Click Calculate to see your result instantly.

実例

Example: With Face value = 1000, Coupon rate (%) = 5, Current price = 950, Years to maturity = 10, the Bond Yield Calculator gives Current Yield Pct: 5.2632, Ytm Approx Pct: 5.641.

よくある質問

What is the difference between current yield and YTM?
Current yield only compares annual coupon income to price; yield to maturity also accounts for any gain or loss from the bond converging to face value at maturity.
Is the YTM figure exact?
It uses a standard approximation formula, not the exact iterative YTM solution, so it may differ slightly from a precise calculation.
What inputs does the Bond Yield Calculator need?
You'll need to provide: Face value, Coupon rate (%), Current price, Years to maturity. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Bond Yield Calculator?
The Bond Yield Calculator applies the formula exactly as calculated — Current yield % = (annual coupon / price) × 100. Approximate yield to maturity % = [coupon + (face value − price)/years] / [(face value + price)/2] × 100. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Are these results guaranteed?
No. The Bond Yield Calculator gives an estimate based on the numbers you enter and standard financial formulas — actual rates, fees, taxes, and terms vary by lender, institution, and jurisdiction, and can change over time. This is not financial advice; consult a qualified financial professional for decisions specific to your situation.
Is the Bond Yield Calculator free to use?
Yes, the Bond Yield Calculator is completely free, requires no signup, and runs instantly in your browser.

債券利回り計算機について

The Bond Yield Calculator uses a real, verifiable formula — Current yield % = (annual coupon / price) × 100. Approximate yield to maturity % = [coupon + (face value − price)/years] / [(face value + price)/2] × 100. — so results are accurate every time, not an approximation.