Bond Duration Calculator

How Does a Bond Duration Calculator Work? 

The bond duration calculator estimates security values to changes in loan costs.  A security with a more extended opportunity to develop will have a value that is more delicate to loan fees. Developing at a higher level means that the loan term would be longer, which means that there would be a higher cost risk. Consider two securities that each yield 5% and cost $1,000, yet have various developments.

  • A bond that develops quicker say, in one year would reimburse its actual expense quicker than a bond that develops in 10 years. So, the more limited development bond would have a lower span and less risk.
  • A bond duration calculator calculates a critical consideration estimation length. On the other hand, we have two securities that are indistinguishable except for their coupon rates, the security with the higher coupon rate will repay its unique expenses quicker than the security.
  • The higher the coupon rate, the lower the term, and the lower the loan fee risk.

A bond duration calculator is used for a purpose that communicates the value change in the worth of security because of an adjustment of financing costs. The idea is that bond prices and loan prices move inversely. This equation is utilized to decide the impact that a 100-basis point (1%) change in loan fees will have on the cost of a bond.

Bond duration calculator term estimates the worth of security because of an adjustment of 100-premise point (1%) change in financing costs. Moreover, the bond span is a Macaulay term, and it should be determined first before the length can be calculated. The bond span works normally time until a bondholder gets the bond’s income. With increasing value, its term decreases, as well as its coupon and loan cost increase.

How To Use a Bond Duration Calculator? 

Bond duration is a real matter in the field of finance. The term bond duration is a proportion of loan cost risk and it is more precise as the adjustment of the loan fee decreases.

Frank Macaulay Duration Formula :

1 × Payments 1 ÷ (1+yield)1 + 2 × Payments2 ÷ (1+yield)2+….+(n-1) × Payments-1 ÷ (1+yield)n-1 + n × Payments+Par Value ÷ (1+yield) /Current Price

Frank Macaulay Modified Duration Formula :

= Macaulay Duration1 + YTMAnnual Payments

Modified Bond Duration (Δ%/1%) :

Estimated in rate change(in cost) per rate change(in loan fee/respect maturity).In terms of percent, we can say

Modified Bond Duration (Δ%/1%) :

Estimated in rate cost change per unit loan fee change. If we wish to update to work on our estimate of the % change in the value of the bond, we can add a convexity change. This can only be done with the help of the bond duration Calculator.

Try Zero Coupon Bond Calculator

What Can a Bond Duration Calculator Do for You?

The bond duration calculator estimates the typical money-weighted term to develop security. It is a vital number for supervisors, investors counselors, and clients to consider while choosing the formula. The bonds with higher terms have more cost instability than bonds with lower lengths. There are many sorts of lengths, and all parts of security, for example, its cost, coupon, development date, and loan fees, are utilized to figure out and calculate the duration.


Expect a $1,000 bond that has a three-year development, pays a 10% coupon, and that loan fees are 5%. This security, following the fundamental security valuing formula, would have a market cost of:

{Market Price} = $100 }{ 1.05 ^ 2 } +$1,100 }{ 1.05 ^ 3 } /{Market Price} } = \$95.24 + \$90.70 + \$950.22 = \$1,136.16

This outcome shows that it requires 2.753 years to recover the actual expense of the bond. With this number, the other bond duration calculator is currently conceivable. To find the other length, financial stability should simply accept the Macaulay term and separate it by 1 +. In this calculator that calculation would be 2.753/(1.05/1), or 2.62%. This intends that for each 1% development in loan fees, the bond in this model would move in cost by 2.62%.

Bond Duration Calculation in Excel