Calculators that give you the number, not a lead form.
Every figure here is computed from primary sources and recalculated as you type. No sign-up, no email gate, no waiting for a page to reload.
Calculator categories
- US Salary After Tax Federal, FICA, state and city tax for all 50 states plus DC. Live
- Payment Processing Fees What Stripe and PayPal actually keep, per currency and amount. Live
- EV Charging Cost Cost to charge any EV at home or on a fast charger, in every state. Live
- GPU Power & Running Cost Real power draw and running cost of any graphics card, by state. Live
- Dog Weight & Nutrition Ideal weight range and daily calories for 274 breeds. Live
- GPA & Grade Conversion Convert grades from 56 national scales to a US 4.0 GPA. Live
Popular calculators
The ones people look for most. 51 states × 26 salary points are precomputed for tax year 2026 alone — the gap between the best and worst state on $100,000 is $7,899 a year.
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- RTX 5090 power and cost GPU
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