MDURATION Function

Excel Functions › Financial

All versions Financial

The Excel MDURATION function returns the modified Macaulay duration — duration adjusted for yield, directly estimating price change per 1% yield move. Settlement and maturity are dates wrap them in DATE() so Excel reads them correctly..


Quick answer:
=MDURATION(DATE(2026,1,1), DATE(2031,1,1), 5%, 4%, 2) // modified duration

Syntax

=MDURATION(settlement, maturity, coupon, yld, frequency, [basis])
ArgumentDescription
settlementRequiredSettlement date.
maturityRequiredMaturity date.
couponRequiredAnnual coupon rate.
yldRequiredAnnual yield.
frequencyRequiredCoupons per year.
basisOptionalDay-count basis.

How to use it

MDURATION returns the modified Macaulay duration — duration adjusted for yield, directly estimating price change per 1% yield move. Settlement and maturity are dates wrap them in DATE() so Excel reads them correctly..

=MDURATION(DATE(2026,1,1), DATE(2031,1,1), 5%, 4%, 2) // modified duration

Try it: interactive demo

Live demo

This is the formula pattern MDURATION uses — copy it into Excel with your own numbers.

Result: computed in Excel

Practice workbook

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Frequently asked questions

How do I enter the dates?
Wrap settlement and maturity in DATE(year,month,day) so Excel reads real dates, not text.
Which Excel versions support it?
All modern versions.
Why might it return #NUM! or #VALUE!?
Out-of-range arguments (e.g. negative rate or settlement after maturity) give #NUM!; non-numeric inputs give #VALUE!.

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Related functions: PRICE · YIELD · DURATION · COUPNUM