--- title: "Compound Interest Calculator | Desert Rock Capital" url: "https://www.desertrockcapital.com/calculators/compound-interest" description: "Calculate future value and total interest with compound interest from a starting amount, rate, frequency, and time. General educational math tool." --- Interest tool # See how money grows with compounding. Compound interest earns interest on interest. Enter a starting amount, rate, compounding frequency, and time to see the future value and total interest. See if you qualify All calculators Starting amount $ Annual interest rate % Compounding Time Time unit ### Results Fill in the fields to see the result. The math runs instantly in your browser; nothing you type is saved or sent. A general-purpose math tool. It runs standard math on the numbers you enter, including a rate you choose yourself. Nothing is pre-filled. It is not an offer, quote, rate, approval, or estimate of any Desert Rock Capital loan. A general math tool. This models savings-style growth; Desert Rock Capital does not offer savings or deposit accounts. The calculator above is a general math tool and is separate from any Desert Rock Capital loan. Desert Rock Capital lends $100 to $3,000 in Utah with no credit check and fixed biweekly payments; the amount offered, if approved, is shown to you up front, and every payment is in writing before you sign. ## How the math works A = P x (1 + r/n)^(n x t) Each period the balance earns interest, and that interest is added to the balance so it earns interest too. Over time this compounding curve grows faster than simple interest on the same rate. Desert Rock Capital is a licensed Utah consumer lender. Our product is a personal installment loan of $100 to $3,000, with no credit check, no collateral, and fixed biweekly payments, for Utah residents. This is a general compound-interest math tool and does not represent a Desert Rock Capital product; we do not offer savings or deposit accounts. It is educational only. Other lenders and products calculate costs differently, and your actual terms depend on your own agreement. We use the standard formula cited below so the math is transparent and not our invention. Source: [Investopedia: compound interest](https://www.investopedia.com/terms/c/compoundinterest.asp) ## Questions, answered plainly ### Is this a Desert Rock Capital product? ### What does compounding frequency change? ### How is this different from simple interest? Simple interest is charged only on the original amount; compound interest also earns on previously added interest, so it grows faster over time. Certificate of Deposit (CD) Simple Interest What you need to apply Ready for the real number? ## Book a time at a Utah branch. We will walk the real schedule with you, in writing, before you sign anything. Booking a time is not a loan decision. No credit check, and a clear decision usually in about 30 minutes. Step 1 of 3 Branch & details ## Which branch, and who's coming in? Pick the location that works for you. Booking a time is not a loan decision. Choose a branch First name * Last name * Email * Phone * I accept the Terms of Service and Privacy Policy * By checking this box, I acknowledge that I have reviewed and agree to be bound by Desert Rock Capital's Terms of Service and Privacy Policy . This includes: - The Mandatory Arbitration Agreement, which requires disputes to be resolved through individual arbitration rather than court or class action - The terms governing contact, communications, and use of my information - All other terms and conditions applicable to my inquiry and any future loan relationship I understand I may opt out of the Arbitration Agreement within 30 days by sending written notice to help@desertrockcapital.com . I consent to receive calls, texts, and emails * I authorize Desert Rock Capital to contact me at the phone number(s) and email address I provide for marketing, informational, and service-related purposes. This consent is not required as a condition of purchasing any goods or services from Desert Rock Capital. This contact may include: - Voice calls, including calls placed using automatic telephone dialing systems (ATDS), artificial intelligence (AI), predictive dialers, or prerecorded/artificial voice messages - Text messages (SMS/MMS) sent via automated systems - Emails related to my inquiry and loan products I understand: - Contact frequency varies; I may receive an average of 5 to 10 text messages per week and multiple voice calls per week - Standard message and data rates charged by my wireless carrier may apply - I can revoke this consent at any time by replying "STOP" to text messages or calling [801-377-3333](tel:+18013773333) - I may be contacted even if my phone number is on a state or federal Do Not Call registry - My wireless carrier is not liable for delayed or undelivered messages By providing my contact information and checking this box, I am providing my express written consent to be contacted as described above. Prefer to talk first? Call 801-377-3333 ## The math is free. So is a straightforward decision. Apply online or visit a branch in Salt Lake City, Orem, or St. George. No credit check, not based on your credit score, and you get a clear decision in about 30 minutes. Start your application