Examples
Examples
Try the starting example
- Actual shipment weight (kg)
- 4
- Shipment length (cm)
- 40
- Shipment width (cm)
- 30
- Shipment height (cm)
- 20
- Tariffs: name, base $, per kg $, cm³/kg divisor, long-side cm threshold, oversize $, fuel %, fuel-on-oversize 0/1
- A,5,2,5000,100,10,5,0 B,8,1,6000,30,4,0,1
- Itemized carrier comparison
- A: kg=4.8, freight=14.6, oversize=0, fuel=0.73, total=15.33; B: kg=4, freight=12, oversize=4, fuel=0, total=16
- Lowest total carrier
- A
- Lowest scenario total ($)
- $15.33
Try another scenario
- Actual shipment weight (kg)
- 1
- Shipment length (cm)
- 10
- Shipment width (cm)
- 10
- Shipment height (cm)
- 10
- Tariffs: name, base $, per kg $, cm³/kg divisor, long-side cm threshold, oversize $, fuel %, fuel-on-oversize 0/1
- Only,2,3,5000,50,5,10,0
- Itemized carrier comparison
- Only: kg=1, freight=5, oversize=0, fuel=0.5, total=5.5
- Lowest total carrier
- Only
- Lowest scenario total ($)
- $5.50
Calculation method
Calculation method
Itemized carrier comparison
Billable weight is max(actual kg, volume/divisor). Add base plus per-kg freight, any longest-side surcharge, and fuel on freight with optional surcharge inclusion.
Lowest total carrier
First minimum-cost carrier in the supplied table.
Lowest scenario total ($)
Minimum total under the supplied arithmetic rules.
Symbols and units
- a
- Actual shipment weight (kg)
- b
- Shipment length (cm)
- c
- Shipment width (cm)
- d
- Shipment height (cm)
- e
- Tariffs: name, base $, per kg $, cm³/kg divisor, long-side cm threshold, oversize $, fuel %, fuel-on-oversize 0/1
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- A comparison of your entered tariffs only, not live carrier prices. Uses continuous billable kg without carrier-specific rounding; enter already-rounded dimensions if required. The surcharge applies only when the longest side strictly exceeds the entered threshold. Other fees and taxes are excluded.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
OpenStax: arithmetic and geometry ↗
Background reading; this does not imply endorsement or independent review of SumFizz.