Child Height Predictor - Online Mid-Parental Method
Estimate a child's potential adult height using the mid-parental height formula (adjusted for gender). Educational tool, not a medical prediction.
UD5 Toolkit
Estimate a child's potential adult height using the mid-parental height formula (adjusted for gender). Educational tool, not a medical prediction.
Enter a reference port's high tide and see estimated tides for the next 3 days using rule of twelfths. Educational.
Enter current weight and age to estimate adult weight based on growth curves. For purebred and mixed.
Collect popular old wives' tales (Chinese gender chart, ring test, cravings) for a purely-for-fun gender prediction. No scientific claims. Local only.
View the moon phase for any date in past or future. See full moon dates and eclipses for a given year.
Input dimensions and color depth to estimate uncompressed file size for BMP, PNG, JPEG. Planning tool.
Enter a recent race time and predict times for other distances. Also get lap splits for different intervals.