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Tools

Free calculators and trackers from The Jolt Journal. Put in your own numbers and see the result straight away. Nothing you type leaves your browser.

  • Tracker

    US Gas Prices

    This week's average price of regular, midgrade, premium and diesel in every state, with the national trend.

  • Calculator

    Mortgage Refinance Calculator

    See your new payment, how many months it takes to earn back the closing costs, and what you save over the life of the loan.

  • Tracker

    High-Yield Savings Rates

    Today's best savings account rates side by side, with the date each was checked, and a calculator for what your money would earn.

  • Calculator

    Side Hustle Earnings Calculator

    What a side gig really pays after platform fees, expenses and self-employment tax, per month, per year and per hour.

  • Tracker

    AI Tool Pricing Tracker

    What ChatGPT, Claude, Gemini and other AI tools cost each month, what their free tiers include, and when we last checked.