Free online calculators
Business, energy, transport and home calculators
Compare costs, calculate materials and test business assumptions. Every utility works in your browser without an account or saved inputs.
01
Business
Business & marketing calculators
Price, margin, acquisition and advertising maths for operators who want the assumptions in view.
02
Energy
Energy & solar calculators
Translate watts, usage, tariffs and system costs into practical daily, monthly and lifetime estimates.
03
Transport
Car, fuel & EV calculators
Compare the recurring costs behind driving, charging, leasing, buying and vehicle ownership.
04
Home projects
Home project calculators
Estimate area, coverage and material quantities before pricing a room, floor, slab or roof.
05
Everyday value
Price & pay calculators
Compare packages, discounts, salaries and commissions with direct, inspectable arithmetic.