Accrued Interest Calculator (ACT/360)
Accrued interest on the actual/360 money-market basis used for USD/EUR deposits, CP, repo and floating legs.
Formula
ACT/360 inflates the effective rate by ~1.39% of itself (365/360) versus the quoted figure — the historical money-market convention for USD and EUR deposits, repo and SOFR/ESTR floating legs. Defaults model a quarterly SOFR-style accrual on $1m.
Not financial advice — for informational and analytical use only. Verify all figures with a qualified professional before acting on them.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
Need accrued interest calculator results fast? Analysts, founders, traders and finance professionals use the Accrued Interest Calculator to skip the spreadsheet and get a defensible answer in one step — free, private and instant.
About Accrued Interest Calculator (ACT/360)
Accrued interest on the actual/360 money-market basis used for USD/EUR deposits, CP, repo and floating legs. ACT/360 inflates the effective rate by ~1.39% of itself (365/360) versus the quoted figure — the historical money-market convention for USD and EUR deposits, repo and SOFR/ESTR floating legs. Defaults model a quarterly SOFR-style accrual on $1m. The governing relationship is AI = P × r × actual days / 360. The Accrued Interest Calculator computes entirely in your browser — free, private (your figures never leave your device) and instant, recalculating live as you change any input.
How to use Accrued Interest Calculator (ACT/360)
- 1Enter Principal (currency), Rate (% p.a.), Actual days into the Accrued Interest Calculator.
- 2The result is computed automatically using AI = P × r × actual days / 360 — there is no button to press.
- 3Change any input to model a different scenario, then copy or share the result.
Why use Accrued Interest Calculator (ACT/360)?
- ✓Computes accrued interest calculator instantly with the correct formula — no spreadsheet needed
- ✓100% free and unlimited, with no sign-up, login or paywall
- ✓Runs entirely in your browser, so the figures you enter stay private
- ✓Shows the formula, a live worked example and references so you can defend the number
Frequently asked questions
What is the formula behind the Accrued Interest Calculator?+
Accrued Interest Calculator uses AI = P × r × actual days / 360. ACT/360 inflates the effective rate by ~1. The tool substitutes your actual inputs into this relationship and shows the worked example step by step.
What inputs does the Accrued Interest Calculator need?+
Enter Principal (currency), Rate (% p.a.), Actual days and the result updates immediately — there is no button to press. Change any value to model a different scenario in real time.
Is the Accrued Interest Calculator free, and is my data private?+
Yes — it is completely free with no sign-up or usage limit, and it runs entirely in your browser, so the numbers you enter are never uploaded or stored on any server. It is for informational and analytical use, not financial advice.
What should I watch out for when using the Accrued Interest Calculator?+
39% of itself (365/360) versus the quoted figure — the historical money-market convention for USD and EUR deposits, repo and SOFR/ESTR floating legs. Defaults model a quarterly SOFR-style accrual on $1m.
What is the Accrued Interest Calculator based on?+
The method follows authoritative sources: ISDA 2006 Definitions §4.16(e) — Actual/360. The formula and references are shown on the page so you can verify and cite the result.
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