Running to swimming conversation rate

In 36 odd minutes I’d run about 6km, and it turns out I swim 1km or thereabouts in that time. I know its totally different muscles, but have no idea what the conversation rate should be… what’s a sensible pace for swimming??

Sabbatical fitness routine going ok – no LSRs in Malaysia but alternating swimming and running pretty well. Hoping to up distance and resume diet when I get back to the UK…