BioLet Composting Toilets Ranked

Last updated: October 31, 2026

3 BioLet composting toilets ranked. Each one is scored and ranked against every brand in its type, so "#3 mid-size" means third of all mid-size composting toilets here, not third among BioLet's own.

BioLet makes 3 current composting toilets: 1 urine-diverting and 2 composting. Prices run from $1,250 for the BioLet Mini to $2,970 for the BioLet 65. Its best-rated model in each size: the BioLet Mini (#19 of 19 urine-diverting, rated 3.0) and the BioLet 55 (#3 of 6 composting, rated 3.1).

Top-rated BioLet
BioLet 55
#3 in Composting3.1Full review

For grid-powered cabins and cottages that want a hands-off composting toilet: automatic mixing and evaporation with no urine bottle, at a high price.

BioLet $2,255
$2,255

Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

BioLet composting toilets 3

  1. BioLet 55
    #3 composting3.1Full review

    For grid-powered cabins and cottages that want a hands-off composting toilet: automatic mixing and evaporation with no urine bottle, at a high price.

    BioLet $2,255
    $2,255
    -120V-
  2. BioLet Mini
    #19 urine-diverting3.0Full review

    For tiny houses and cabins with mains power that want a small diverting toilet that looks like a household fixture, with a drain option.

    BioLet $1,250 BioLet $1,250
    $1,250
    -120V-
  3. BioLet 65
    #5 composting2.8Full review

    For full-time households on grid power that want a hands-off composting toilet with no urine bottle; the price and power needs rule it out for vans.

    BioLet $2,970
    $2,970
    4 people120V-

Every toilet ranked