| Kernaalanjärvi | |
| Pushpin Map: | Finland |
| Location: | Loppi, Finland |
| Coords: | 60.6833°N 50°W |
| Lake Type: | Lake |
| Outflow: | Tervajoki river |
| Catchment: | Kokemäenjoki |
| Basin Countries: | Finland |
| Area: | 4.448km2 |
| Depth: | 3.28m (10.76feet) |
| Max-Depth: | 7.91m (25.95feet) |
| Volume: | 0.0146km3 |
| Shore: | 14.58km (09.06miles) |
| Elevation: | 79.4m (260.5feet) |
| Frozen: | December–April |
| Islands: | none |
| Cities: | Janakkala |
| Reference: | [1] |
Kernaalanjärvi is a medium-sized lake in Finland. It is situated in the municipality of Janakkala in the Tavastia Proper region. The lake is part of Kokemäenjoki basin and it drains into Lake Vanajavesi through Hiidenjoki River.