Pounds, shillings and pence calculator

SterlingCalc LSD 240

Sterling calculator







Introduction

Sadly, electronic calculators arrived too late for Britain's pounds, shillings and pence system. The first calculators went on sale in late 1970. Decimalisation was already on the way in the UK, so no-one made a sterling pocket calculator.

I wanted to see what one would have looked like if the technology had been available a little sooner, or if we had kept pounds shillings and pence until 1975.

Instructions

Addition

To add £5 8s 11d and 7s 6d:

Enter: '5' - '£' - '8' - 's' - '1' -' 1' - 'd'

Enter: '+':

Enter: '7' - 's' - '6' - 'd':

Enter: '='

Subtraction

To subtract 7s 6d from £5 8s 11d:

Enter: '5' - '£' - '8' - 's' - '1' -' 1' - 'd'

Enter: '-':

Enter: '7' - 's' - '6' - 'd':

Enter: '='

Multiplication

To multiply £5 8s 11d by 9:

Enter: '5' - '£' - '8' - 's' - '1' -' 1' - 'd'

Enter: 'x':

Enter: '9':

Enter: '='

Division

To divide £5 8s 11d by 3:

Enter: '5' - '£' - '8' - 's' - '1' -' 1' - 'd'

Enter: '÷':

Enter: '3':

Enter: '='

Division rounds to the nearest 1d.

Read more

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Comments

Xofiri

Is there a percentage calculator like this anywhere? You know, with pounds, shillings, and pence..?

jumin

How do I calculate percentages (for finding VAT)?

John

All I get is ERROR

Steven

Would you be able to say what you were trying to do? thanks

Alf Hartigan

Eyup, what about halfpennies?

£3 9s 5p

-£1 17 10½p

=£1 11s 6½p

By the time we left Primary School in 1966, we were doing those sums in our heads!

Nowadays, it's 'do what the till tells you' ;)

Dennis Young

Sorry to say that it is not working as well it did.

Love the idea. I keep getting 'Error' when I try use any of the minus/plus buttons.

Steven

Can you give an example of what you are trying to do please? The only time I got an error with the + and = keys was when I typed the £ key first. If you do 5s 8d + 7£ it works.

 
 
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