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.
- Payment Processing Fees What Stripe and PayPal actually keep, per currency and amount.
- EV Charging Cost Cost to charge any EV at home or on a fast charger, in every state.
- GPU Power & Running Cost Real power draw and running cost of any graphics card, by state.
- Dog Weight & Nutrition Ideal weight range and daily calories for 274 breeds.
- Self-Employed & 1099 Tax What a contractor really keeps, and the rate that matches a salary.
- Local LLM VRAM Which open models your GPU or Mac can actually run, and at what context.
- PSU Wattage What power supply a build needs, sized on the CPU’s real ceiling rather than its TDP.
- GTA 6 Running Cost What the consoles it launches on cost to run, and what is actually known about a PC version.
- GPA & Grade Conversion Convert grades from 56 national scales to a US 4.0 GPA.
Popular calculators
The ones people look for most. Each computes from a published figure rather than a rule of thumb — a card’s real board power, a CPU’s turbo ceiling rather than its TDP, a state’s 2026 tax tables. On that last one alone, across 51 states and 26 salary points, the gap between the best and worst state on $100,000 is $7,899 a year.
- RTX 5090 power and cost GPU
- RTX 4090 power and cost GPU
- RTX 4060 power and cost GPU
- What PSU an RTX 5090 needs PSU
- What PSU a Ryzen 7 9800X3D needs PSU
- Llama 3.1 8B VRAM needed VRAM
- What LLMs run on an RTX 4090 VRAM
- California salary after tax Salary
- Texas salary after tax Salary
- $100k after tax in California Salary
- $100k after tax in Texas Salary
- PayPal fees on $25 Fees
- Stripe fees on a payment Fees
- Tesla Model Y charging cost EV
- Labrador weight and diet Dogs
Guides
The reasoning behind the numbers, worked through step by step with the same data the calculators use.
How these numbers are made
No figure on this site is typed in by hand. Each calculator runs on a dataset compiled from primary sources — IRS revenue procedures and state revenue departments for tax, the US Energy Information Administration for electricity prices, the EPA for EV efficiency, manufacturer specifications for graphics cards and processors, breed standards for dogs, national grading regulations for GPA — and every calculation is checked against a second, independent implementation before anything is published. The answer is in the page before any script runs, every input can be changed, and nothing you type leaves your browser.
CalcuGrid is built and maintained by Efe Arda Ergez. The methodology sets out every formula and default, and the about page explains why the site exists and how it is funded. Found a figure that looks wrong? Tell me and it will be traced.