Calculate reserve percentage, total deposits, or total reserves when you enter any two values in this bank reserve calculator tool.

Reserve Percentage Calculator

Enter any 2 values to calculate the missing variable


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Reserve Percentage Formula

The reserve percentage shows what part of total deposits, or reservable liabilities, is held as reserves. The calculator can solve for total reserves, reserve percentage, or total deposits when you enter the other two values.

TR = TD * (RP / 100)
RP = (TR / TD) * 100
TD = TR / (RP / 100)
  • TR = total amount in reserves
  • TD = total deposits or reservable liabilities
  • RP = reserve percentage

To find the total amount in reserves, multiply total deposits by the reserve percentage written as a decimal.

To find the reserve percentage, divide total reserves by total deposits, then multiply by 100.

To find total deposits, divide total reserves by the reserve percentage written as a decimal.

Reserve Percentage Conversions

Use this table to convert common reserve percentages into decimals for manual calculations.

Reserve Percentage Decimal Form Reserves per $1,000 Deposits
1% 0.01 $10
5% 0.05 $50
10% 0.10 $100
12.5% 0.125 $125
20% 0.20 $200

Reserve Calculation Examples

Example 1: Find total reserves

You have total deposits of $250,000 and a reserve percentage of 8%.

TR = 250000 * (8 / 100)
TR = 250000 * 0.08 = 20000

The total amount in reserves is $20,000.

Example 2: Find reserve percentage

You have $15,000 in reserves and $300,000 in total deposits.

RP = (15000 / 300000) * 100
RP = 0.05 * 100 = 5

The reserve percentage is 5%.

Reserve Percentage FAQ

What is a reserve percentage?

A reserve percentage is the percent of total deposits or reservable liabilities kept in reserve. For example, if deposits are $100,000 and reserves are $10,000, the reserve percentage is 10%.

How do you calculate reserves from a percentage?

Multiply total deposits by the reserve percentage divided by 100. For example, 6% of $50,000 is calculated as $50,000 × 0.06, which equals $3,000.

Can the reserve percentage be zero?

A reserve percentage can be zero in some theoretical cases, but you cannot use zero to calculate total deposits from reserves. The formula would require division by zero, which is undefined.