Dimensions and fit
Box-fit tools compare all six orthogonal orientations of three entered dimensions. They ignore irregular shapes, hinges, protrusions, loading motion and the path into storage. The volume tool multiplies centimetres and divides by 1000 for litres. Clearance subtracts item width and the margin on both sides from the opening.
Costs and travel
All cost tools use one currency and your own prices. Per-outing cost divides an entered budget by a positive outing count. Rental comparisons apply a daily rental price and one-off fee to the entered duration. Walking time divides distance by your entered speed and adds breaks; it is adult trip planning, not a child activity recommendation.
Units and records
One inch equals 2.54 cm, one pound equals 0.45359237 kg and one mile equals 1.609344 km. Dates are calendar days; reminders are all-day ICS events. Outing and service logs remain in this browser, with CSV export and individual or complete deletion.
These tools do not certify safe use, product condition, airline acceptance, child eligibility or compatibility. Follow model-specific instructions and verify a real fit.