Free Online Calculator Apps

We have a selection of online calculators available, each is free to use and there are also free calculator apps available.

Alcohol Unit Calculator - calculate how many alcohol units you have drunk and when you can drive safely.

Blackjack Calculator - calculate the best choice to make with a Blackjack hand.

Conversion Rate Calculator - calculate sales conversion ratios for sales from a website/app or shop.

Craft Calculator - work out how much to charge for handmade items.

Discount Calculator - calculate the sale price of a product using a discount percentage.

PayPal Fees - calculate PayPal charges when receiving a payment.

Price Markup Calculator - calculate the retail price of products using a percentage based profit margin.

Race Night Tote Calculator - quickly work out tote payouts for fundraising race nights.

Sales Tax Calculator - add or subtract sales tax to a products price.

Tip Calculator - quickly calculate how much of a tip to leave when dining out.

VAT Calculator - add or subtract value added tax to a products price.