Woocommerce Unit of Measure / Selling by Decimal?

We have an integration with our woo commerce website and our accounts package (SAP B1) Which integrates sales from woo commerce directly into SAP.

One item which has always caused us problems is a length of 5 meter product.

We sell the product on SAP as 1 length = 5m.

However on the website we sell 2.5m 2m and 1m.

I want a way to visually sell a 2.5m length, or a 2m length. without the customer having to work out the decimal.

So a 2m length would be sold as 0.4, a 2.5 would be 0.5 and a 1.5m would be 0.3 for example.

This isn’t great for the customer purchasing these items.

Are they any other ways to tackle this problem such as a unit of measure plugin which will visually make 0.2 sell as (1 Meter) for example.

Many Thanks

Andy