Finance

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Reserve Ratio Calculator.

Calculate reserve ratio from reserves and deposits.

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Reserve ratio: 10.00%

Reserve ratio

10.00%
Ratio as decimal: 0.1

Ratio as decimal

0.1000

How to Use

Reserve ratio is shown as a descriptive ratio only. No regulatory minimum, banking multiplier, or policy recommendation is inferred.

FAQs

How does the reserve ratio calculator work?

Enter the requested values to receive a deterministic result. No live market, tax, or jurisdiction data is inferred.

Cite this calculator

Canonical URL: https://mathify.one/fr/finance/reserve-ratio

Cite as: Mathify. (2026). Calculatrice: Reserve Ratio. https://mathify.one/fr/finance/reserve-ratio

Use Cases

Assess a bank's liquidity position

Use the reserve ratio to gauge how much of a bank's deposits are kept as reserves, which is a key indicator of its ability to meet withdrawal demands.

Example: If a bank has $2 million in reserves and $20 million in deposits, the reserve ratio is 10%.

Monitor regulatory compliance

Banks can use this calculator to quickly check if their reserve ratio meets the minimum requirements set by their central bank or regulatory authority.

Example: If the required ratio is 8% and the calculated ratio is 10%, the bank is compliant.

Frequently Asked Questions

What is the reserve ratio?
The reserve ratio is the fraction of total deposits that a bank holds in reserve, either as cash or in accounts at the central bank. It is calculated by dividing reserves by deposits and expressing the result as a percentage.
How do I use this calculator?
Enter the total reserves (in dollars) and total deposits (in dollars) into the respective fields. The calculator will automatically compute the reserve ratio as a percentage, showing what portion of deposits is held in reserve.
What does a higher reserve ratio indicate?
A higher reserve ratio means the bank holds a larger percentage of its deposits in reserve, which can indicate a more conservative or liquid position. However, the required ratio is often set by regulators, and banks may hold additional reserves voluntarily.

Tips & Common Mistakes

Tips

  • Ensure both reserves and deposits are in the same currency (dollars) before calculating.
  • Reserves typically include cash in the vault and balances held at the central bank, but not all liquid assets.
  • The reserve ratio is a snapshot; it can change daily as deposits and reserves fluctuate.
  • Use this calculator for educational or reference purposes; actual regulatory requirements may vary.

Common Mistakes to Avoid

  • Using total assets instead of deposits as the denominator; the reserve ratio is specifically reserves divided by deposits.
  • Entering reserves and deposits in different units (e.g., thousands vs. millions) without converting to the same unit.
  • Confusing the reserve ratio with the capital adequacy ratio, which includes other capital measures.

Last updated: August 13, 2026