80–100%
High coverage
Most of the expected estimate is backed by direct or published pricing evidence.
ACCURACY & CONFIDENCE
TrueCost does not pretend every number is equally strong.
Official prices, market observations, published benchmarks, and planning assumptions are not the same thing. That is why we show ranges, evidence coverage, and partial components instead of one falsely precise number.
50–79%
Moderate coverage
A meaningful share is evidenced, with a noticeable contribution from planning assumptions or partial coverage.
<50%
Limited coverage
Useful for early planning, but it deserves more verification before a payment decision.
What is Evidence Coverage?
It is the share of the expected trip estimate supported by direct or published pricing evidence inside the calculation engine. The remaining share may use governed planning assumptions when needed.
The percentage measures the value of the estimate covered by evidence, not simply the number of components.
Why show Low / Expected / High?
Hotels, flights, transport, and services move with dates, quality, and availability. A range gives you a more realistic planning envelope than one fixed number.
Safer Budget is a planning buffer above the high estimate to absorb variation; it is not a prediction that the trip will cost that amount.
What confidence does not mean
It is not a guarantee of final bookable price or availability.
It does not mean every component has identical evidence depth.
It does not turn an observed price into a bookable offer.
It does not replace checking cancellation terms, quality, and supplier-specific details.
See confidence on your own trip scenario
The Trip Builder calculates evidence coverage for your result and flags partial components. For the deeper evidence model, read the methodology.